A performance comparison between ad hoc and centrally controlled CDMA wireless LANs

Author

Bao, Jeffrey Q. ; Tong, Lang

Author_Institution

Broadband Networks Res. Lab., Motorola Inc., Mansfield, MA, USA

Volume

1

Issue

4

fYear

2002

fDate

10/1/2002 12:00:00 AM

Firstpage

829

Lastpage

841

Abstract

A performance comparison is presented between two types of code-division multiple-access wireless local area networks: centrally controlled and ad hoc networks. Based on a finite-population model, the network throughput, the average packet delay, and the network first exit time are derived for both systems. Two aspects of the performance comparison are addressed: (1) the comparison between the centrally controlled and the ad hoc architecture; and (2) the impact of spreading gain and error control coding on both systems. The efficiency of bandwidth utilization is investigated by normalizing the network performance with respect to the consumed bandwidth. Evaluations of these performance comparisons are also provided.

Keywords

access protocols; code division multiple access; delays; error correction codes; packet radio networks; performance evaluation; telecommunication control; wireless LAN; Internet; ad hoc wireless LAN; average packet delay; bandwidth utilization efficiency; centrally controlled CDMA wireless LAN; code-division multiple-access; error control coding; finite-population model; network architecture; network first exit time; network performance; network throughput; performance comparison; slotted Aloha random access protocols; spreading gain; Ad hoc networks; Bandwidth; Centralized control; Control systems; Delay effects; Error correction; Multiaccess communication; Performance gain; Throughput; Wireless LAN;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2002.805092

Filename

1045313