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Seokjung Kim, Seokwon Lee, Haesoon Lee, and Daesik Hong, "Capacity Analysis of Outdated Relay Selection in Opportunistic Relaying System using Adaptive Transmission Technique", IEEE WCNC, April. 2014
[IEEE WCNC]Status : | Presented |
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Date : | 2014-04 |
Title : | Capacity Analysis of Outdated Relay Selection in Opportunistic Relaying System using Adaptive Transmission Technique |
Authors : | Seokjung Kim, Seokwon Lee, Haesoon Lee, and Daesik Hong |
Conference : | IEEE WCNC 2014 |
Abstract : | In this paper, we investigate the impact of outdated channel state information (CSI) on the channel capacity of an opportunistic relaying system in conjunction with adaptive transmission techniques.We derive the closed-form expressions of the channel capacity and its associated outage probability for four adaptive transmission techniques: (1) optimal rate adaptation with constant transmit power, (2) optimal transmit power and rate adaptation, (3) channel inversion with fixed rate, and (4) truncated channel inversion with fixed rate. Analytical and numerical results show the effects of outdated CSI on the capacity of the optimal power and rate adaptation and the sub-optimal channel inversion techniques. In addition, we compare the channel capacity among various adaptive transmission techniques in the presence of outdated CSI, thereby illustrating the intuitive tradeoff between the achievable capacity and implementation complexity. |
URL : | http://ieeexplore.ieee.org/xpl/articleDe...+Technique |
Download : | http://mirinae.yonsei.ac.kr/?module=file...9681b8d603 |
Seokjung Kim; Seokwon Lee; Haesoon Lee; Daesik Hong,
"Capacity analysis of outdated relay selection in opportunistic relaying
system using an adaptive transmission technique," Wireless Communications and
Networking Conference (WCNC), 2014 IEEE ,
vol., no., pp.24,29, 6-9 April 2014
doi: 10.1109/WCNC.2014.6951916
keywords: {channel capacity;relay networks (telecommunication);adaptive
transmission technique;capacity analysis;channel capacity;closed form
expressions;constant transmit power;opportunistic relaying system;optimal rate
adaptation;optimal transmit power;outage probability;outdated channel state
information;outdated relay selection;suboptimal channel inversion;truncated
channel inversion;Adaptive systems;Channel capacity;Closed-form
solutions;Correlation;Data communication;Relays;Signal to noise ratio},
URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6951916&isnumber=6951847
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