Asymptotic Capacity of Large Relay Networks with Conferencing Links

被引：0
|
作者：
Huang, Chuan [1 ]
Jiang, Jinhua [2 ]
Cui, Shuguang [1 ]
机构：
[1] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA
[2] Qualcomm Inc, Santa Clara, CA 95051 USA
来源：
IEEE TRANSACTIONS ON COMMUNICATIONS | 2012年 / 60卷 / 05期
关键词：
Large relay networks; conferencing; asymptotic; decode-and-forward; amplify-and-forward; CHANNELS;
D O I：
10.1109/TCOMM.2012.022712.110027
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：
In this correspondence, we consider a half-duplex large relay network, consisting of one source-destination pair and N relay nodes, each of which is connected with a subset of the other relays via signal-to-noise ratio (SNR)-limited out-of-band conferencing links. The asymptotic achievable rates of two basic relaying schemes with the "p-portion" conferencing strategy are studied: For the decode-and-forward (DF) scheme, we prove that the DF rate scales as O(log(N)); for the amplify-and-forward (AF) scheme, we prove that it asymptotically achieves the capacity upper bound in some interesting scenarios as N goes to infinity.
引用
收藏
页码：1193 / 1198
页数：6
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