Abstract
In a network with multiple relays, relay selection has been shown as an effective scheme to achieve diversity as well as to improve the overall throughput. This paper studies the impact of using outdated channel state information for relay selection on the performance of a network where two sources communicate with each other via fixed-gain amplify-and-forward relays. For a Rayleigh faded channel, closed-form expressions for the outage probability, moment generating function and symbol error rate are derived. Simulations results are also presented to corroborate the derived analytical results. It is shown that adding relays does not improve the performance if the channel is substantially outdated. Furthermore, relay location is also taken into consideration and it is shown that the performance can be improved by placing the relay closer to the source whose channel is more outdated.
| Original language | English |
|---|---|
| Title of host publication | 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| Volume | 2015 |
| ISBN (Electronic) | 9781479980888 |
| DOIs | |
| Publication status | Published - 1 Jul 2015 |
| Event | 81st IEEE Vehicular Technology Conference, VTC Spring 2015 - Glasgow, United Kingdom Duration: 11 May 2015 → 14 May 2015 |
Other
| Other | 81st IEEE Vehicular Technology Conference, VTC Spring 2015 |
|---|---|
| Country | United Kingdom |
| City | Glasgow |
| Period | 11/5/15 → 14/5/15 |
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ASJC Scopus subject areas
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering
Cite this
Opportunistic fixed gain bidirectional relaying with outdated CSI. / Khan, Fahd Ahmed; Tourki, Kamel; Alouini, Mohamed Slim; Qaraqe, Khalid A.
2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings. Vol. 2015 Institute of Electrical and Electronics Engineers Inc., 2015. 7145978.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Opportunistic fixed gain bidirectional relaying with outdated CSI
AU - Khan, Fahd Ahmed
AU - Tourki, Kamel
AU - Alouini, Mohamed Slim
AU - Qaraqe, Khalid A.
PY - 2015/7/1
Y1 - 2015/7/1
N2 - In a network with multiple relays, relay selection has been shown as an effective scheme to achieve diversity as well as to improve the overall throughput. This paper studies the impact of using outdated channel state information for relay selection on the performance of a network where two sources communicate with each other via fixed-gain amplify-and-forward relays. For a Rayleigh faded channel, closed-form expressions for the outage probability, moment generating function and symbol error rate are derived. Simulations results are also presented to corroborate the derived analytical results. It is shown that adding relays does not improve the performance if the channel is substantially outdated. Furthermore, relay location is also taken into consideration and it is shown that the performance can be improved by placing the relay closer to the source whose channel is more outdated.
AB - In a network with multiple relays, relay selection has been shown as an effective scheme to achieve diversity as well as to improve the overall throughput. This paper studies the impact of using outdated channel state information for relay selection on the performance of a network where two sources communicate with each other via fixed-gain amplify-and-forward relays. For a Rayleigh faded channel, closed-form expressions for the outage probability, moment generating function and symbol error rate are derived. Simulations results are also presented to corroborate the derived analytical results. It is shown that adding relays does not improve the performance if the channel is substantially outdated. Furthermore, relay location is also taken into consideration and it is shown that the performance can be improved by placing the relay closer to the source whose channel is more outdated.
UR - http://www.scopus.com/inward/record.url?scp=84940399202&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84940399202&partnerID=8YFLogxK
U2 - 10.1109/VTCSpring.2015.7145978
DO - 10.1109/VTCSpring.2015.7145978
M3 - Conference contribution
AN - SCOPUS:84940399202
VL - 2015
BT - 2015 IEEE 81st Vehicular Technology Conference, VTC Spring 2015 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
ER -