Dynamic quality of service differentiation using fixed code weight in optical CDMA networks

Majid H. Kakaee, Shawnim I. Essa, Thanaa H. Abd, Saleh Seyedzadeh

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The emergence of network-driven applications, such as internet, video conferencing, and online gaming, brings in the need for a network the environments with capability of providing diverse Quality of Services (QoS). In this paper, a new code family of novel spreading sequences, called a Multi-Service (MS) code, has been constructed to support multiple services in Optical- Code Division Multiple Access (CDMA) system. The proposed method uses fixed weight for all services, however reducing the interfering codewords for the users requiring higher QoS. The performance of the proposed code is demonstrated using mathematical analysis. It shown that the total number of served users with satisfactory BER of 10-9 using NB=2 is 82, while they are only 36 and 10 when NB=3 and 4 respectively. The developed MS code is compared with variable-weight codes such as Variable Weight-Khazani Syed (VW-KS) and Multi-Weight-Random Diagonal (MW-RD). Different numbers of basic users (NB) are used to support triple-play services (audio, data and video) with different QoS requirements. Furthermore, reference to the BER of 10−12, 10−9, and 10−3 for video, data and audio, respectively, the system can support up to 45 total users. Hence, results show that the technique can clearly provide a relative QoS differentiation with lower value of basic users can support larger number of subscribers as well as better performance in terms of acceptable BER of 10−9 at fixed code weight.
LanguageEnglish
Pages342-351
Number of pages10
JournalOptics Communications
Volume355
Early online date24 Mar 2015
DOIs
Publication statusPublished - 15 Nov 2015

Fingerprint

code division multiple access
Code division multiple access
Quality of service
Video conferencing
Internet
audio data
video conferencing
video data
applications of mathematics
requirements

Keywords

  • fiber optics communications
  • optical code division multiple access (OCDMA)
  • spectral amplitude coding (SAC)
  • multi-service (MS) code
  • quality of seervice (QoS)

Cite this

Kakaee, Majid H. ; Essa, Shawnim I. ; Abd, Thanaa H. ; Seyedzadeh, Saleh. / Dynamic quality of service differentiation using fixed code weight in optical CDMA networks. In: Optics Communications. 2015 ; Vol. 355. pp. 342-351.
@article{2ef1ed4fa13b43708690731f2f8a8132,
title = "Dynamic quality of service differentiation using fixed code weight in optical CDMA networks",
abstract = "The emergence of network-driven applications, such as internet, video conferencing, and online gaming, brings in the need for a network the environments with capability of providing diverse Quality of Services (QoS). In this paper, a new code family of novel spreading sequences, called a Multi-Service (MS) code, has been constructed to support multiple services in Optical- Code Division Multiple Access (CDMA) system. The proposed method uses fixed weight for all services, however reducing the interfering codewords for the users requiring higher QoS. The performance of the proposed code is demonstrated using mathematical analysis. It shown that the total number of served users with satisfactory BER of 10-9 using NB=2 is 82, while they are only 36 and 10 when NB=3 and 4 respectively. The developed MS code is compared with variable-weight codes such as Variable Weight-Khazani Syed (VW-KS) and Multi-Weight-Random Diagonal (MW-RD). Different numbers of basic users (NB) are used to support triple-play services (audio, data and video) with different QoS requirements. Furthermore, reference to the BER of 10−12, 10−9, and 10−3 for video, data and audio, respectively, the system can support up to 45 total users. Hence, results show that the technique can clearly provide a relative QoS differentiation with lower value of basic users can support larger number of subscribers as well as better performance in terms of acceptable BER of 10−9 at fixed code weight.",
keywords = "fiber optics communications, optical code division multiple access (OCDMA), spectral amplitude coding (SAC), multi-service (MS) code, quality of seervice (QoS)",
author = "Kakaee, {Majid H.} and Essa, {Shawnim I.} and Abd, {Thanaa H.} and Saleh Seyedzadeh",
year = "2015",
month = "11",
day = "15",
doi = "10.1016/j.optcom.2015.03.046",
language = "English",
volume = "355",
pages = "342--351",
journal = "Optics Communications",
issn = "0030-4018",

}

Dynamic quality of service differentiation using fixed code weight in optical CDMA networks. / Kakaee, Majid H.; Essa, Shawnim I.; Abd, Thanaa H.; Seyedzadeh, Saleh.

In: Optics Communications, Vol. 355, 15.11.2015, p. 342-351.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Dynamic quality of service differentiation using fixed code weight in optical CDMA networks

AU - Kakaee, Majid H.

AU - Essa, Shawnim I.

AU - Abd, Thanaa H.

AU - Seyedzadeh, Saleh

PY - 2015/11/15

Y1 - 2015/11/15

N2 - The emergence of network-driven applications, such as internet, video conferencing, and online gaming, brings in the need for a network the environments with capability of providing diverse Quality of Services (QoS). In this paper, a new code family of novel spreading sequences, called a Multi-Service (MS) code, has been constructed to support multiple services in Optical- Code Division Multiple Access (CDMA) system. The proposed method uses fixed weight for all services, however reducing the interfering codewords for the users requiring higher QoS. The performance of the proposed code is demonstrated using mathematical analysis. It shown that the total number of served users with satisfactory BER of 10-9 using NB=2 is 82, while they are only 36 and 10 when NB=3 and 4 respectively. The developed MS code is compared with variable-weight codes such as Variable Weight-Khazani Syed (VW-KS) and Multi-Weight-Random Diagonal (MW-RD). Different numbers of basic users (NB) are used to support triple-play services (audio, data and video) with different QoS requirements. Furthermore, reference to the BER of 10−12, 10−9, and 10−3 for video, data and audio, respectively, the system can support up to 45 total users. Hence, results show that the technique can clearly provide a relative QoS differentiation with lower value of basic users can support larger number of subscribers as well as better performance in terms of acceptable BER of 10−9 at fixed code weight.

AB - The emergence of network-driven applications, such as internet, video conferencing, and online gaming, brings in the need for a network the environments with capability of providing diverse Quality of Services (QoS). In this paper, a new code family of novel spreading sequences, called a Multi-Service (MS) code, has been constructed to support multiple services in Optical- Code Division Multiple Access (CDMA) system. The proposed method uses fixed weight for all services, however reducing the interfering codewords for the users requiring higher QoS. The performance of the proposed code is demonstrated using mathematical analysis. It shown that the total number of served users with satisfactory BER of 10-9 using NB=2 is 82, while they are only 36 and 10 when NB=3 and 4 respectively. The developed MS code is compared with variable-weight codes such as Variable Weight-Khazani Syed (VW-KS) and Multi-Weight-Random Diagonal (MW-RD). Different numbers of basic users (NB) are used to support triple-play services (audio, data and video) with different QoS requirements. Furthermore, reference to the BER of 10−12, 10−9, and 10−3 for video, data and audio, respectively, the system can support up to 45 total users. Hence, results show that the technique can clearly provide a relative QoS differentiation with lower value of basic users can support larger number of subscribers as well as better performance in terms of acceptable BER of 10−9 at fixed code weight.

KW - fiber optics communications

KW - optical code division multiple access (OCDMA)

KW - spectral amplitude coding (SAC)

KW - multi-service (MS) code

KW - quality of seervice (QoS)

U2 - 10.1016/j.optcom.2015.03.046

DO - 10.1016/j.optcom.2015.03.046

M3 - Article

VL - 355

SP - 342

EP - 351

JO - Optics Communications

T2 - Optics Communications

JF - Optics Communications

SN - 0030-4018

ER -