A Priority Based Bandwidth Reservation Protocol for Wireless Mesh Networks
In wireless mesh networks, when compared with traditional applications, multimedia application requires the need of inflexible Quality of services (QoS) for high speed digital audio and videos. Under such a condition, the need of proper resource allocation is extremely handy. In this paper, we propose to develop a Priority Based Bandwidth Reservation Protocol (PBRP) for wireless mesh networks. Our protocol consists of two phases namely Bandwidth Request phase and Bandwidth Reply phase. In the former Phase, a Bandwidth Request (BREQ) message is forwarded from the node that requests the admission of a new traffic flow to its destination. In the later Phase, a Bandwidth Reply (BREP) message proceeds backwards, hop-by-hop, from the destination node to the node that originated the request along the path laid down by the corresponding (BREQ) message. The destination node precedes the reply according to the priority of traffic classes and reserves the bandwidth on the reply path. By simulation results, we show that our proposed protocol achieves high bandwidth utilization and throughput with reduced delay, when compared with existing technique.
Keywords: Wireless Mesh Networks (WMN), Quality of services (QoS), Priority Based Bandwidth Reservation Protocol (PBRP), Bandwidth Request (BREQ), access points (APs)
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ABOUT THE AUTHORS
K. Valarmathi
K. Valarmathi received BSC (Computer Science), MCA degrees from University of Madras in the year 1991, 1998 respectively. She has also received ME (Computer Science) degree in 2004 from Sathyabama University. She has worked in several Public Limited companies for more than 7 years. She worked as a Lecturer in MNM Jain Engineering College for more than 2 years. Now she is working as Assistant Professor in Panimalar Engineering College from July 2003 onwards. During her teaching service she has received Best Teacher award in the year 2007 and received cash awards many times for her academic excellence. She is currently pursuing the PhD degree in the field of Wireless Mesh Networks under the guidance of Dr. N. Malmurugan, Principal of Oxford Engineering College, Trichy.
N. Malmurugan
Dr. Malmurugan Nagarajan has around Twenty two years of both Teaching and Industrial experience. He worked extensively in Audio, Video Codec development for mobile platforms and well versed with Audio and Video standards. He is strong in developing tools & system applications and Modeling & Simulation. Currently he is developing new algorithms and IPs for the components in Wireless Broadband Physical Layer He is an Educationist and held various positions ranging from Lecturer to Principal in various educational organizations. His area of interest includes Wavelet variants based Signal and Image Processing, Multimedia Compression & Watermarking, Signal Processing algorithm development in Telecom domain. He is Member of IEEE, Fellow of IETE, Fellow of UWA and Editor of Journal of Simulation and Modeling
K. Valarmathi
K. Valarmathi received BSC (Computer Science), MCA degrees from University of Madras in the year 1991, 1998 respectively. She has also received ME (Computer Science) degree in 2004 from Sathyabama University. She has worked in several Public Limited companies for more than 7 years. She worked as a Lecturer in MNM Jain Engineering College for more than 2 years. Now she is working as Assistant Professor in Panimalar Engineering College from July 2003 onwards. During her teaching service she has received Best Teacher award in the year 2007 and received cash awards many times for her academic excellence. She is currently pursuing the PhD degree in the field of Wireless Mesh Networks under the guidance of Dr. N. Malmurugan, Principal of Oxford Engineering College, Trichy.
N. Malmurugan
Dr. Malmurugan Nagarajan has around Twenty two years of both Teaching and Industrial experience. He worked extensively in Audio, Video Codec development for mobile platforms and well versed with Audio and Video standards. He is strong in developing tools & system applications and Modeling & Simulation. Currently he is developing new algorithms and IPs for the components in Wireless Broadband Physical Layer He is an Educationist and held various positions ranging from Lecturer to Principal in various educational organizations. His area of interest includes Wavelet variants based Signal and Image Processing, Multimedia Compression & Watermarking, Signal Processing algorithm development in Telecom domain. He is Member of IEEE, Fellow of IETE, Fellow of UWA and Editor of Journal of Simulation and Modeling
