Multiuser Detection Based MAC Design for Ad Hoc Networks

被引：13

作者：

Zhang, Jinfang ^{[1
]}

Dziong, Zbigniew ^{[1
]}

Gagnon, Francois

Kadoch, Michel

机构：

[1] Univ Quebec, Ecole Technol Super, Dept Genie Elect, Montreal, PQ H3C 3P8, Canada

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 04期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Multiuser detection; MAC protocol; scheduling; connectivity update; code assignment; fairness provisioning; WIRELESS; HANDOFF;

D O I：

10.1109/T-WC.2008.071449

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Recent technological advances in code division multiple access (CDMA) with multiuser detection (MUD) allow to consider this technology for future wireless Ad Hoc networks. Due to the fundamentally different physical layer architecture, application of MUD in Ad Hoc networks requires novel approaches for medium access control (MAC) and scheduling mechanisms in order to take advantage of the new features. This paper proposes a new MAC and scheduling paradigm which addresses three design issues: distributed dynamic code assignment that avoids code collision, distributed scheduling scheme that provides fairness among contending nodes, and organization of the data transmission based on multiuser detection. Simulation model is used to verify the performance gains from the increased spectrum reuse due to multiuser reception and from the reduced interference due to multiuser detection. This is done by comparisons with existing MAC paradigms, such as CSMA/CA and parallel CDMA.

引用

页码：1836 / 1846

页数：11

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