TY - GEN
T1 - Reliable Channel Selection and Routing for Real-Time Services over Cognitive Radio Mesh Networks
AU - Xie, Lang
AU - Heegaard, P. E.
AU - Zhang, Yan
AU - Xiang, Jie
PY - 2012
Y1 - 2012
N2 - In Cognitive Radio Mesh Networks (CogMesh), Secondary Mesh Routers (SMRs) can opportunistically utilize the licensed spectrums for the traffic of the Secondary Mesh Users (SMUs). How to guarantee Quality of Service (QoS) for real-time services over CogMesh is still an opening issue. In this paper, we present a discrete-time vacation queueing system to abstract the Primary User (PU) interruption to SMR data transmission. Moreover, we formulate the optimization problem of joint channel selection and routing, to achieve minimum end-to-end delay for SMR while guaranteeing the channel unavailability. A heuristic method is proposed to solve this problem and results show our proposed method performs the closest to the scheme using optimization tool, and outperforms the minimal unavailability scheme and minimal delay scheme in terms of end-to-end delay and solution rate.
AB - In Cognitive Radio Mesh Networks (CogMesh), Secondary Mesh Routers (SMRs) can opportunistically utilize the licensed spectrums for the traffic of the Secondary Mesh Users (SMUs). How to guarantee Quality of Service (QoS) for real-time services over CogMesh is still an opening issue. In this paper, we present a discrete-time vacation queueing system to abstract the Primary User (PU) interruption to SMR data transmission. Moreover, we formulate the optimization problem of joint channel selection and routing, to achieve minimum end-to-end delay for SMR while guaranteeing the channel unavailability. A heuristic method is proposed to solve this problem and results show our proposed method performs the closest to the scheme using optimization tool, and outperforms the minimal unavailability scheme and minimal delay scheme in terms of end-to-end delay and solution rate.
KW - channel selection
KW - cognitive radio mesh networks
KW - real-time services
KW - vacation queueing
UR - http://www.scopus.com/inward/record.url?scp=84885013292&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-29222-4_4
DO - 10.1007/978-3-642-29222-4_4
M3 - Conference contribution
AN - SCOPUS:84885013292
SN - 9783642292217
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 41
EP - 57
BT - Quality, Reliability,Security and Robustness in Heterogeneous Networks - 7th Int. Conf. on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2010 and DSRC 2010.
T2 - 7th International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness, QShine 2010, and Dedicated Short Range CommunicationsWorkshop, DSRC 2010
Y2 - 17 November 2010 through 19 November 2010
ER -