A Rehearsal-Assisted Distributed MAC Protocol for TDD-CDMA Based Multihop Networks

Author

Zhang, Yan ; Yang, Yuhang ; Ma, Maode ; Shang, Dan ; Du, Lin

Author_Institution

Shanghai Jiao Tong Univ., Shanghai

Volume

11

Issue

11

fYear

2007

fDate

11/1/2007 12:00:00 AM

Firstpage

904

Lastpage

906

Abstract

A multihop architecture of a CDMA system will bring new challenges to the MAC protocol design due to its interference-limited nature. In this letter, a new rehearsal-assisted distributed MAC protocol has been proposed. This protocol makes use of a separated control channel to resolve conflictions and to gauge the multiple access interference (MAI). The rehearsal procedure tests the mutual influence between quasi- access link and other ongoing communications via distributed power control. A new link will be set up only when there is no negative feedback from the rehearsal. Thus the on-going links can be protected from deterioration due to an unregulated new access. Simulation results show a significant improvement on throughput by our protocol.

Keywords

code division multiple access; distributed control; interference suppression; power control; telecommunication links; TDD-CDMA network; distributed power control; multihop networks; multiple access interference; quasiaccess link; rehearsal-assisted distributed MAC protocol; separated control channel; Access protocols; Communication system control; Media Access Protocol; Multiaccess communication; Multiple access interference; Negative feedback; Power control; Protection; Spread spectrum communication; Testing;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2007.070988

Filename

4381383