# American Institute of Mathematical Sciences

2011, 1(4): 627-638. doi: 10.3934/naco.2011.1.627

## Admission control by dynamic bandwidth reservation using road layout and bidirectional navigator in wireless multimedia networks

 1 Convergence Technology Department, Central R&D Laboratories, KT, Seoul, South Korea 2 Department of Mathematics and Telecommunication Mathematics Research Center, Korea University, Seoul, South Korea, South Korea, South Korea

Received  May 2011 Revised  August 2011 Published  November 2011

In this paper, we propose a Call Admission Control (CAC) scheme by dynamic bandwidth reservation where a new call is admitted only when both the remaining resource units at the serving Base Station (BS) excluding the resource units of ongoing calls in the BS and the reserved resource units of anticipated incoming handoff calls from direct neighbor cell is enough to accommodate the new call, and when the next cell for this call to visit has enough resource units to accommodate the new call. The proposed call admission control incorporates both mobile information such as position, speed, and next cell to visit by using bidirectional navigator and road layout information. Simulation results show that the handoff call dropping probability and new call blocking probability of our proposed CAC scheme are lower than an existing similar CAC scheme, respectively. To show the practicality of the assumption of having bidirectional navigator for each Mobile Station (MS), we give a simulation where some MSs have bidirectional navigators and some MSs don't have. The simulation results show that more MSs with bidirectional navigators, less the new call blocking probability, while keeping handoff call dropping probability at the same level.
Citation: Jin Soo Park, Kyung Jae Kim, Yun Han Bae, Bong Dae Choi. Admission control by dynamic bandwidth reservation using road layout and bidirectional navigator in wireless multimedia networks. Numerical Algebra, Control & Optimization, 2011, 1 (4) : 627-638. doi: 10.3934/naco.2011.1.627
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