DAFTAR ISI LEMBAR PENGESAHAN.. ...................................................................... i SURAT PERNYATAAN ............................................................................ ii ABSTRACT.. ............................................................................................... iii ABSTRAK.. ................................................................................................. iv KATA PENGANTAR ................................................................................. v DAFTAR ISI ................................................................................................ vii DAFTAR TABEL ....................................................................................... x DAFTAR GAMBAR ................................................................................... xi DAFTAR LAMPIRAN ............................................................................... xiv BAB I
BAB II
PENDAHULUAN 1.1
Latar Belakang ................................................................... I.1
1.2
Identifikasi Masalah ........................................................... I.2
1.3
Rumusan Masalah .............................................................. I.2
1.4
Ruang Lingkup ................................................................... I.2
1.5
Maksud dan Tujuan ............................................................ I.2
1.6
Sistematika Penulisan ........................................................ I.3
LANDASAN TEORI 2.1
WiMAX ............................................................................... II.1 2.1.1 Perkembangan Teknologi Wireless ........................... II.1 2.1.2 Spektrum Frekuensi WiMAX ..................................... II.1
2.2
Infrastruktur WiMAX .......................................................... II.2 2.2.1 Base Station (BS) ...................................................... II.2 2.2.2 Subscriber Station (SS) ............................................. II.3 2.2.3 Antena ....................................................................... II.3
2.3 Worldwide Interoperability for Microwave Access (WiMAX) ............................................................................................ II.3 2.3.1 Perkembangan WiMAX ( IEEE 802.16 ) ................... II.4 2.3.2 Keuntungan WiMAX.................................................. II.6 2.3.3 Varian – Varian IEEE 802.16 ................................... II.6 2.4
Cara Kerja WiMAX ............................................................. II.7 2.4.1 Topologi Jaringan WiMAX ........................................ II.8 vii
2.4.2 Struktur Layer Pada Jaringan WiMAX ...................... II.9 2.5 Quality of Service (QoS) ..................................................... II.10 2.5.1 QoS WiMAX .............................................................. II.10 2.5.2 Parameter QoS........................................................... II.11 2.6
TCP .................................................................................... II.11 2.6.1 TCP Standar .............................................................. II.13 2.6.2 TCP New Reno .......................................................... II.14 2.6.3 TCP Westwood + ....................................................... II.14
2.7
Network Simulator 2 (NS2)................................................ II.15 2.7.1 Sejarah Network Simulator 2 .................................... II.15
BAB III
METODOLOGI PENELITIAN 3.1
Identifikasi Masalah ........................................................... III.1
3.2
Teknik Simulasi ................................................................. III.2 3.2.1 Rancangan Solusi ...................................................... III.2 3.2.2 Pengumpulan Data .................................................... III.3
BAB IV
BAB V
3.3
Simulasi .............................................................................. III.3
3.4
Analisis Hasil Kebutuhan................................................... III.3
3.5
Kesimpulan Hasil Analisis ................................................. III.3
PERANCANGAN 4.1
Perancangan ...................................................................... IV.1
4.2
Instalasi Cygwin dan NS2 ................................................. IV.2
IMPLEMENTASI 5.1
Skenario Simulasi .............................................................. V.1 5.1.1 Skenario 1: Server Client .......................................... V.1 5.1.2 Skenario 2: Konfigurasi Jaringan Antar Layanan Qos WiMAX ............................................................................. V.2 5.1.3 Skenario 3: Uji Fairness TCP .................................... V.2
5.2
Simulasi .............................................................................. V.3 5.2.1 Skenario 1: Server Client .......................................... V.3 5.2.2 Skenario 2: Konfigurasi Jaringan Antar Layanan Qos WiMAX ............................................................................. V.4 5.2.3 Skenario 3: Uji Fairness TCP .................................... V.5
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5.3
Evaluasi Kinerja Protokol TCP .......................................... V.6 5.3.1 Evaluasi Skenario 1 Konfigurasi server client ........ V.6 5.3.1.1 Error rate 0.001 ............................................. V.6 5.3.1.2 Error rate 0.01 ............................................... V.8 5.3.1.3 Error rate 0.1 ................................................. V.10 5.3.2 Evaluasi Skenario 2 : Konfigurasi Jaringan Antar Layanan Qos WiMAX ...................................................................... V.12 5.3.2.1 Layanan QoS WiMAX ................................. V.12 5.3.2.2 Error rate 0.001 .............................................. V.12 5.3.2.3 Error rate 0.02 ................................................ V.14 5.3.3 Uji Fairness ............................................................... V.16 5.3.3.1 Waktu Pembangkitan Trafik Bersamaan ...... V.16 5.3.3.2 Waktu Pembangkitan Trafik Berbeda .......... V.17 5.4 Ringkasan Evaluasi Simulasi ....................................... V.18
VI
KESIMPULAN
6.1 Kesimpulan ........................................................................................... VI.1 6.2 Saran ...................................................................................................... VI.1 DAFTAR PUSTAKA LAMPIRAN
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DAFTAR TABEL Tabel 2.1 Varian – varian stnadar IEEE 802.16............................................ II.7 Tabel 4.1 Parameter WiMAX ....................................................................... IV.1 Tabel 5.1 Error rate pada konfigurasi server client .................................... V.1 Tabel 5.2 Error rate pada konfigurasi server client ..................................... V.3 Tabel 5.3 Perbandingan trhogput TCP Newr Reno dan Westwood e=0.001 V.7 Tabel 5.4 Perbandingan throughput TCP New reno dan Westwood+ e=0,01 ....................................................................................................................... V.9 Tabel 5.5 Perbandingan kinerja TCP New reno dan TCP Westwood+ pada e=0,1 ....................................................................................................................... V.11 Tabel 5.6 Perbandingan kinerja TCP New reno dan TCP Westwood+ e=0,001 ....................................................................................................................... V.13 Tabel 5.7 Perbandingan kinerja TCP New reno dan Westwood+ ....................................................................................................................... V.15
x
DAFTAR GAMBAR Gambar 2.1 Contoh base station.. ................................................................. II.3 Gambar 2.2 Contoh subscriber station.. ....................................................... II.3 Gambar 2.3 Standar – standar MAN disatukan dengan standar WiMAX.. .. II.4 Gambar 2.4 Grafik prediksi penggunaan WiMAX di berbagai negara ........ II.5 Gambar 2.5 Jaringan WiMAX ...................................................................... II.7 Gambar 2.6 Struktur layer fisik dan data link WiMAX 802.16 .................... II.10 Gambar 2.7 OSI layer.. ................................................................................. II.12 Gambar 2.8 Kontrol kongesti pada TCP ....................................................... II.14 Gambar 2.9 Kontrol kongesti pada TCP reno ............................................... II.14 Gambar 2.10 Kontrol ukuran congestion windows (cwnd) pada TCP Westwood + ....................................................................................................................... II.15 Gambar 3.1 Blok diagram metodologi penelitian ......................................... III.1 Gambar 3.2 Flowchart rancangan solusi ...................................................... III.2 Gambar 4.1 File – file untuk instalasi cygwin .............................................. IV.2 Gambar 4.2 Menjalankan setup.exe cygwin ................................................. IV.2 Gambar 4.3 Opsi pemilihan paket dari local directory ................................. IV.3 Gambar 4.4 Lokasi penginstalan cygwin ...................................................... IV.3 Gambar 4.5 Lokasi file local directory ......................................................... IV.4 Gambar 4.6 Pemilihan file yang akan diinstal .............................................. IV.4 Gambar 4.7 Tampilan awal cygwin .............................................................. IV.5 Gambar 4.8 Tahap instalai NS2 .................................................................... IV.5 Gambar 4.9 Perintah validate untuk NS2 ...................................................... IV.5 Gambar 4.10 Tampilan NS2 ......................................................................... IV.6 Gambar 4.11 Tampilan simulasi ................................................................... IV.6 Gambar 5.1 Skenario 1 server client ............................................................. V.1 Gambar 5.2 Skenario 2 konfigurasi jaringan antar layanan QoS .................. V.2 Gambar 5.3 Skenario 3 uji fairness TCP ....................................................... V.3 Gambar 5.4 Konfigurasi scenario 1 server client .......................................... V.4 Gambar 5.5 Konfigurasi antar layanan QoS ................................................. V.5 Gambar 5.6 Konfigurasi uji fairness ............................................................. V.6
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Gambar 5.7 Congestion window (cwnd) antara TCP New reno dengan TCP Westwood+ e=0,001 ...................................................................................... V.6 Gambar 5.8 Throughput TCP New reno dan Westwood+ e=0,001............... V.7 Gambar 5.9 Congestion window (cwnd) antara TCP New reno dengan TCP Westwood+ e=0,01 ....................................................................................................................... V.8 Gambar 5.10 Throughput TCP New reno dan Westwood+ e=0,01 ....................................................................................................................... V.9 Gambar 5.11 Congestion window (cwnd) antara TCP New reno dengan TCP Westwood+ e=0,1 ....................................................................................................................... V.10 Gambar 5.12 Throughput TCP New reno dan Westwood+ e=0,1 ....................................................................................................................... V.11 Gambar 5.13. Perbandingan jumlah paket yang diterima TCP dengan variasi error rate ....................................................................................................................... V.12 Gambar 5.14 Congestion window (cwnd) antara TCP New reno dengan TCP Westwood+ e=0,001 ....................................................................................................................... V.12 Gambar 5.15 Throughput TCP New reno dan Westwood+ ....................................................................................................................... V.13 Gambar 5.16 Congestion window (cwnd) antara TCP New reno dengan TCP Westwood+ e=0,02 ....................................................................................................................... V.14 Gambar 5.17 Throughput TCP New reno dan Westwood+ ....................................................................................................................... V.15 Gambar 5.18 Cwnd TCP New reno 1, New reno 2, dan New reno 3 yang dibangkitkan bersamaan ....................................................................................................................... V.16 Gambar 5.19 Cwnd TCP Westwood+ 1, Westwood+ 2 dan Westwood+ 3 yang dibangkitkan secara bersamaan ....................................................................................................................... V.17
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Gambar 5.20 Cwnd TCP New reno 1, New reno 2, dan New reno 3 yang dibangkitkan dengan jeda 30 detik ....................................................................................................................... V.17 Gambar 5.21 Cwnd TCP Westwood+ 1, Westwood+ 2 dan Westwood+ 3 yang dibangkitkan dengan jeda 30 detik ....................................................................................................................... V.18
xiii
DAFTAR LAMPIRAN Lampiran A : Source Code Lampiran B : Kartu Bimbingan Tugas Akhir Lampiran C : Daftar Riwayat Hidup
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