TY - GEN
T1 - Decision of transmit relays and transmit power of double opportunistic transmit cooperative relaying system in Rayleigh fading channels
AU - Kim, Nam Soo
AU - Lee, Ye Hoon
PY - 2011
Y1 - 2011
N2 - Recently, cooperative diversity has been introduced to wireless ad-hoc networks for power saving and for diversity gain over fading channel. The space diversity gain is obtained from the multiple copies of signals from the several cooperating relays. Consequently this diversity gain saves the power of the networks. However, a receiver generally has fixed number of branches at a destination. Therefore the excess number of transmit relays does not contribute to the performance improvement, and only waste the network power and radio resources. Therefore, we propose a method which is adjusting the average number of transmit relays, and controlling the transmit power of the relays locally to satisfy the required performance in double opportunistic transmit (DOT) relaying system. Numerical analysis shows that average number of transmit relays decreases with the increase of threshold and vice versa. And we noticed that the transmit power of relays for the required system performance can be controlled locally.
AB - Recently, cooperative diversity has been introduced to wireless ad-hoc networks for power saving and for diversity gain over fading channel. The space diversity gain is obtained from the multiple copies of signals from the several cooperating relays. Consequently this diversity gain saves the power of the networks. However, a receiver generally has fixed number of branches at a destination. Therefore the excess number of transmit relays does not contribute to the performance improvement, and only waste the network power and radio resources. Therefore, we propose a method which is adjusting the average number of transmit relays, and controlling the transmit power of the relays locally to satisfy the required performance in double opportunistic transmit (DOT) relaying system. Numerical analysis shows that average number of transmit relays decreases with the increase of threshold and vice versa. And we noticed that the transmit power of relays for the required system performance can be controlled locally.
KW - Cooperative diversity
KW - Rayleigh fading
KW - Relay
UR - http://www.scopus.com/inward/record.url?scp=84866385912&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-22875-9_44
DO - 10.1007/978-3-642-22875-9_44
M3 - Conference contribution
AN - SCOPUS:84866385912
SN - 9783642228742
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 487
EP - 495
BT - Smart Spaces and Next Generation Wired/Wireless Networking - 11th International Conference, NEW2AN 2011, and 4th Conference on Smart Spaces, ruSMART 2011, Proceedings
T2 - 11th International Conference on Next Generation Teletraffic and Wired/Wireless Advanced Networking, NEW2AN 2011 and 4th Conference on Smart Spaces, ruSMART 2011
Y2 - 22 August 2011 through 25 August 2011
ER -