Int. J. Communication Networks and Distributed Systems, Vol. 5, No. 4, 2010 429 Copyright © 2010 Inderscience Enterprises Ltd. A new dynamic guard channel reservation scheme for cellular wireless networks Raj Kumar Samanta* and Gautam Sanyal Department of CSE, National Institute of Technology, Durgapur, Gandhi Avenue, West Bengal 713209, India E-mail: reesam03@gmail.com E-mail: gs_cse@nitdgp.ac.in E-mail: nitgsanyal@gmail.com *Corresponding author Partha Bhattacharjee Central Mechanical Engineering Research Institute, Durgapur, Gandhi Avenue, West Bengal 713209, India E-mail: cmeripartha@gmail.com Abstract: In this paper, a new dynamic guard channel reservation scheme, based on conditional real-time channel availability, is proposed to achieve better handoff performance and higher utilisation of system resources (radio spectrum) in cellular wireless networks. The proposed scheme has been explained mathematically and studied in a cellular wireless environment. Different performance parameters are measured using the proposed scheme and are compared with those obtained from a fixed guard channel scheme. Keywords: dynamic guard channel; probability of blocking; probability of forced termination; handoff; cellular wireless network. Reference to this paper should be made as follows: Samanta, R.K., Sanyal, G. and Bhattacharjee, P. (2010) ‘A new dynamic guard channel reservation scheme for cellular wireless networks’, Int. J. Communication Networks and Distributed Systems, Vol. 5, No. 4, pp.429–443. Biographical notes: Raj Kumar Samanta has a BTech in Computer Science and Engineering from Regional Engineering College (presently National Institute of Technology), Hamirpur, Himachal Pradesh, India and a MTech. from Maulana Azad National Institute of Technology, Bhopal, India. He has more than 12 years of professional experience in the area of network administration, software development and teaching. Presently, he is pursuing his PhD as an Institute Research Scholar at the National Institute of Technology, Durgapur, India. Gautam Sanyal received his PhD (Engineering) from Jadavpur University, Kolkata, India. He possesses about 25 years teaching and research experience. He has published about 50 papers in international and national journals/conferences. He guided a number of UG and PG students. Recently, two scholars have been awarded PhD degrees under his supervision and four PhD scholars are working in the area of computer vision, steganography, computer networks and grid computing. He is a Reviewer of