Title :
Outage optimum routing for wireless networks
Author :
Amiri, B. ; Sadjadpour, H.R. ; Garcia-Luna-Aceves, JJ
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Santa Cruz, CA, USA
Abstract :
A new routing metric for multi-hop wireless ad hoc networks is presented. The proposed metric is based on the computation of Signal-to-Noise Ratio (SNR) and minimization of wireless network outage probability in a fading environment. This metric improves the Quality-of-Service by reducing dropped packets. Further, by modeling the network with a Trellis diagram and then using Viterbi Algorithm to select the best routing path, we reduce the routing complexity of our approach. Simulation results demonstrate the improvement achieved by implementation of this new metric. Performance of the proposed metric is compared to other commonly used routing metrics such as Minimum Hop Count (MinHop), Expected Transmission Count (ETX) and two other SNR-based metrics in both mobile and stationary networks.
Keywords :
Viterbi decoding; ad hoc networks; fading channels; quality of service; telecommunication network routing; trellis codes; Expected Transmission Count; MinHop; Minimum Hop Count; SNR-based metrics; Viterbi Algorithm; fading environment; mobile networks; multihop wireless ad hoc networks; outage optimum routing; quality-of-service; routing complexity; signal-to-noise ratio; stationary networks; trellis diagram; wireless network outage probability; wireless networks; Delay; Mobile communication; Routing; Routing protocols; Signal to noise ratio; Wireless networks; Mobile ad hoc networks; Outage Probability; Quality-of-Service; Routing protocols; Signal to noise ratio; Viterbi Algorithm;
Conference_Titel :
Wireless Communications and Mobile Computing Conference (IWCMC), 2011 7th International
Conference_Location :
Istanbul
Print_ISBN :
978-1-4244-9539-9
DOI :
10.1109/IWCMC.2011.5982498