Abstract
This paper deals with the problem of joint multicast routing, scheduling, and call admission control in multiradio multi-channel wireless mesh networks. To heuristically solve this problem, we propose a cross-layer algorithm named “extended MIMCR with scheduling and call admission control phases (EMSC)”. Our model relies on the on-demand quality of service (QoS) multicast sessions, where each admitted session creates a unique tree with a required bandwidth. The proposed scheme extends the MIMCR algorithm to fairly schedule multiple non-interfering transmissions in the same time slot. It also exploits a call admission control mechanism to protect the QoS requirements of the multicast traffics. EMSC reduces the number of occupied time slots, with consideration of spatial reuse, both Intra-flow and Inter-flow interferences, and selecting the minimum-interference minimum-cost paths. This subsequently leads to better radio resource utilization and increases the network throughput. Simulation results show that the proposed algorithm outperforms the other algorithms and improves the network performance.
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Zeinab Askari received the BSc degree in electronics engineering from Sheikhbahaee University, Iran in 2012. She completed MSc course in telecommunication systems engineering at Najafabad University, Iran in 2016. Her general research area is wireless networking specially designing cross-layer algorithms for multicast and broadcast routing in wireless mesh networks.
Avid Avokh received the BSc degree in electronics engineering from Najafabad University, Iran in 2005, and the MSc degree in communication systems engineering from Yazd University, Iran in 2008 with honors. In 2014, he completed the PhD program at Yazd University, Iran. Currently, Dr. Avokh is an assistant professor in the department of electrical engineering, at Najafabad University, Iran. His research interests are in general areas of multi-radio multi-channel wireless mesh networks and wireless sensor networks, with particular reference to energy efficiency, fundamental aspects of routing, channel assignment, and traffic engineering. He has published more than 40 papers in national and international journals and conference proceedings.
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Askari, Z., Avokh, A. EMSC: a joint multicast routing, scheduling, and call admission control in multi-radio multi-channel WMNs. Front. Comput. Sci. 14, 145503 (2020). https://doi.org/10.1007/s11704-019-8199-9
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DOI: https://doi.org/10.1007/s11704-019-8199-9