Relay MAC channels: Capacity and resource allocation

被引：1

作者：

Pan, Chengkang ^{[1
]}

Cai, Yueming ^{[1
]}

Xu, Youyun ^{[1
]}

机构：

[1] PLAUST, Inst Commun Engn, Dept Wireless Commun, Nanjing 210007, Peoples R China

来源：

2007 IEEE 65TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2007年

关键词：

multiple access channel; relay channel; channel capacity; resource allocation;

D O I：

10.1109/VETECS.2007.595

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：

We investigate the relay multiple access channels (RMAC) with two users and a destination. We determine the lower bound and upper bound on the capacity of RMAC under time-division (TD) decode-and-forward (DF) mode by using superposition modulation. A relay scheme with resource allocation is proposed to achieve the lower bound. Analytical results and simulation results show that the proposed scheme can achieve larger capacity region than that of direct transmission (DT) for the fixed channel gain case. But they provide the same maximum sum capacity. Whereas, the proposed relay scheme can provide higher outage capacity than DT scheme due to the fact that the two sources can share the resources from each other.

引用

页码：2900 / 2904

页数：5

共 11 条

[1]

Cover T.M., 1991, Information Theory

[2]

COVER TM, 1979, IEEE T INFORM THEORY, V25, P572, DOI 10.1109/TIT.1979.1056084

[3]

ERIK G, 2005, IEEE COMMUNICATION L, V9, P778

[4] Capacity bounds and power allocation for wireless relay channels [J].

Host-Madsen, A ;

Zhang, JS .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (06) :2020-2040

[5] Cooperative strategies and capacity theorems for relay networks [J].

Kramer, G ;

Gastpar, M ;

Gupta, P .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (09) :3037-3063

[6] Outage capacities and optimal power allocation for fading multiple-access channels [J].

Li, LF ;

Jindal, N ;

Goldsmith, A .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (04) :1326-1347

[7]

LIANG Y, 2006, P IEEE INT S INF THE

[8] Gaussian orthogonal relay channels: Optimal resource allocation and capacity [J].

Liang, YB ;

Veeravalli, VV .

IEEE TRANSACTIONS ON INFORMATION THEORY, 2005, 51 (09) :3284-3289

[9]

Sankaranarayanan L., 2004, P 42 ANN ALL C COMM, P1782

[10] User cooperation diversity - Part 1: System description [J].

Sendonaris, A ;

Erkip, E ;

Aazhang, B .

IEEE TRANSACTIONS ON COMMUNICATIONS, 2003, 51 (11) :1927-1938

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