TY - GEN
T1 - Capture effects in opportunistic slotted ALOHA over rayleigh fading channels
AU - Hu, Xiaoyu
AU - Yao, Yu Dong
PY - 2008
Y1 - 2008
N2 - This paper studies the throughput, average packet delay and average power consumption for opportunistic slotted ALOHA (OS-ALOHA) in Rayleigh fading channels. The basic idea of the opportunistic transmission is to control the transmission probability of each user based on the channel quality. If the channel is good, a user transmits the packet; otherwise it holds the packet. A finite state Markov chain (FSMC) channel is modeled and the capture effect is considered in this paper. The channel fading is assumed to be correlated from slot to slot and channel state transition is incorporated into the analysis of system performance. The system performance for OS-ALOHA is investigated considering packet traffic statistics. Compared to conventional slotted ALOHA, OS-ALOHA systems show a higher throughput, smaller average delay and higher power efficiency.
AB - This paper studies the throughput, average packet delay and average power consumption for opportunistic slotted ALOHA (OS-ALOHA) in Rayleigh fading channels. The basic idea of the opportunistic transmission is to control the transmission probability of each user based on the channel quality. If the channel is good, a user transmits the packet; otherwise it holds the packet. A finite state Markov chain (FSMC) channel is modeled and the capture effect is considered in this paper. The channel fading is assumed to be correlated from slot to slot and channel state transition is incorporated into the analysis of system performance. The system performance for OS-ALOHA is investigated considering packet traffic statistics. Compared to conventional slotted ALOHA, OS-ALOHA systems show a higher throughput, smaller average delay and higher power efficiency.
UR - http://www.scopus.com/inward/record.url?scp=67249144543&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67249144543&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2008.ECP.747
DO - 10.1109/GLOCOM.2008.ECP.747
M3 - Conference contribution
AN - SCOPUS:67249144543
SN - 9781424423248
T3 - GLOBECOM - IEEE Global Telecommunications Conference
SP - 3892
EP - 3896
BT - 2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
T2 - 2008 IEEE Global Telecommunications Conference, GLOBECOM 2008
Y2 - 30 November 2008 through 4 December 2008
ER -