TY - GEN
T1 - On the delay optimal downlink scheduling with relay stations
AU - Baek, Seung Jun
PY - 2010
Y1 - 2010
N2 - In this paper we investigate a model for delay-optimal scheduling for networks using relay station (RS) in contemporary broadband wireless access networks. We present an optimal control problem using a queueing model based on Markov Decision Process (MDP) incorporating an opportunistic scheduling for downlink in a RS architecture. Using a simplified queueing model for access networks, we propose a policy for the case where the arrival and channel statistics are symmetric among users. The key idea behind the policy is that users should greedily exploit opportunism at RS, while the basestation should prioritize on balancing queues at RS. An analogous fluid problem is presented to show that such policy is optimal in the fluid regime. Through numerical methods we discuss the performance of the proposed scheme and another throughput-optimal solution such as backpressure policies.
AB - In this paper we investigate a model for delay-optimal scheduling for networks using relay station (RS) in contemporary broadband wireless access networks. We present an optimal control problem using a queueing model based on Markov Decision Process (MDP) incorporating an opportunistic scheduling for downlink in a RS architecture. Using a simplified queueing model for access networks, we propose a policy for the case where the arrival and channel statistics are symmetric among users. The key idea behind the policy is that users should greedily exploit opportunism at RS, while the basestation should prioritize on balancing queues at RS. An analogous fluid problem is presented to show that such policy is optimal in the fluid regime. Through numerical methods we discuss the performance of the proposed scheme and another throughput-optimal solution such as backpressure policies.
UR - http://www.scopus.com/inward/record.url?scp=79951873380&partnerID=8YFLogxK
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U2 - 10.1109/GLOCOMW.2010.5700124
DO - 10.1109/GLOCOMW.2010.5700124
M3 - Conference contribution
AN - SCOPUS:79951873380
SN - 9781424488650
T3 - 2010 IEEE Globecom Workshops, GC'10
SP - 1192
EP - 1196
BT - 2010 IEEE Globecom Workshops, GC'10
T2 - 2010 IEEE Globecom Workshops, GC'10
Y2 - 5 December 2010 through 10 December 2010
ER -