QoS‐aware routing and power control algorithm for multimedia service over multi‐hop mobilead hocnetwork
Zae-Kwun Lee, GyeongCheol Lee, Hyung Rai Oh, Hwangjun Song · Wireless Communications and Mobile Computing · 2010
Abstract This paper presents a QoS (quality of service) aware routing and power control algorithm consuming low transmission power for multimedia service over mobilead hocnetwork. Generally, multimedia services need stringent QoS over the network. However, it is not easy to guarantee the QoS over mobilead hocnetwork since its network resources are very limited and time‐varying. Furthermore, only a limited amount of power is available at mobile nodes, which makes the problem more challenging. We propose an effective routing and power control algorithm for multimedia services that satisfies end‐to‐end delay constraint with low transmission power consumption. The proposed algorithm supports the required bandwidth by controlling each link channel quality over route in a tolerable range. In addition, a simple but effective route maintenance mechanism is implemented to avoid link failures that may significantly degrade streaming video quality. Finally, performance comparison with existing algorithms is presented in respect to traditional routing performance metrics, and an achievable video quality comparison is provided to demonstrate the superiority of the proposed algorithm for multimedia services over mobilead hocnetwork. Copyright © 2010 John Wiley & Sons, Ltd.