Abstract
Relay-based transmission can over the benefits in terms of coverage extension as well as throughput improvement if compared to conventional direct transmission. In a relay enhanced cellular (REC) network, where multiple mobile terminals act as relaying nodes (RNs), multiuser diversity gain can be exploited. We propose an efficient relaying scheme, referred to as Broadcast Reserved Opportunity Assisted Diversity (BROAD) for the REC networks. Unlike the conventional Induced Multiuser Diversity Relaying (IMDR) scheme, our scheme acquires channel quality information (CQI) in which the destined node (DN) sends pilots on a reserved radio resource. The BROAD scheme can significantly decrease the signaling overhead among the mobile RNs while achieving the same multiuser diversity as the conventional IMDR scheme. In addition, an alternative version of the BROAD scheme, named as A-BROAD scheme, is proposed also, in which the candidate RN(s) feed back partial or full CQI to the base station (BS) for further scheduling purpose. The A-BROAD scheme achieves a higher throughput than the BROAD scheme at the cost of extra signalling overhead. The theoretical analysis given in this paper demonstrates the feasibility of the schemes in terms of their multiuser diversity gains in a REC network.
| Original language | English |
|---|---|
| Article number | 521834 |
| Journal | Eurasip Journal on Wireless Communications and Networking |
| Volume | 2008 |
| DOIs | |
| Publication status | Published - 2008 May 26 |
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All Science Journal Classification (ASJC) codes
- Signal Processing
- Computer Science Applications
- Computer Networks and Communications
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Broadcast reserved opportunity assisted diversity relaying scheme and its performance evaluation. / Chen, Hsiao-Hwa; Chen, Xia; Hu, Honglin; Jin, Shengyao.
In: Eurasip Journal on Wireless Communications and Networking, Vol. 2008, 521834, 26.05.2008.Research output: Contribution to journal › Article
TY - JOUR
T1 - Broadcast reserved opportunity assisted diversity relaying scheme and its performance evaluation
AU - Chen, Hsiao-Hwa
AU - Chen, Xia
AU - Hu, Honglin
AU - Jin, Shengyao
PY - 2008/5/26
Y1 - 2008/5/26
N2 - Relay-based transmission can over the benefits in terms of coverage extension as well as throughput improvement if compared to conventional direct transmission. In a relay enhanced cellular (REC) network, where multiple mobile terminals act as relaying nodes (RNs), multiuser diversity gain can be exploited. We propose an efficient relaying scheme, referred to as Broadcast Reserved Opportunity Assisted Diversity (BROAD) for the REC networks. Unlike the conventional Induced Multiuser Diversity Relaying (IMDR) scheme, our scheme acquires channel quality information (CQI) in which the destined node (DN) sends pilots on a reserved radio resource. The BROAD scheme can significantly decrease the signaling overhead among the mobile RNs while achieving the same multiuser diversity as the conventional IMDR scheme. In addition, an alternative version of the BROAD scheme, named as A-BROAD scheme, is proposed also, in which the candidate RN(s) feed back partial or full CQI to the base station (BS) for further scheduling purpose. The A-BROAD scheme achieves a higher throughput than the BROAD scheme at the cost of extra signalling overhead. The theoretical analysis given in this paper demonstrates the feasibility of the schemes in terms of their multiuser diversity gains in a REC network.
AB - Relay-based transmission can over the benefits in terms of coverage extension as well as throughput improvement if compared to conventional direct transmission. In a relay enhanced cellular (REC) network, where multiple mobile terminals act as relaying nodes (RNs), multiuser diversity gain can be exploited. We propose an efficient relaying scheme, referred to as Broadcast Reserved Opportunity Assisted Diversity (BROAD) for the REC networks. Unlike the conventional Induced Multiuser Diversity Relaying (IMDR) scheme, our scheme acquires channel quality information (CQI) in which the destined node (DN) sends pilots on a reserved radio resource. The BROAD scheme can significantly decrease the signaling overhead among the mobile RNs while achieving the same multiuser diversity as the conventional IMDR scheme. In addition, an alternative version of the BROAD scheme, named as A-BROAD scheme, is proposed also, in which the candidate RN(s) feed back partial or full CQI to the base station (BS) for further scheduling purpose. The A-BROAD scheme achieves a higher throughput than the BROAD scheme at the cost of extra signalling overhead. The theoretical analysis given in this paper demonstrates the feasibility of the schemes in terms of their multiuser diversity gains in a REC network.
UR - http://www.scopus.com/inward/record.url?scp=43949146286&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=43949146286&partnerID=8YFLogxK
U2 - 10.1155/2008/521834
DO - 10.1155/2008/521834
M3 - Article
AN - SCOPUS:43949146286
VL - 2008
JO - Eurasip Journal on Wireless Communications and Networking
JF - Eurasip Journal on Wireless Communications and Networking
SN - 1687-1472
M1 - 521834
ER -