Paper Info
Title
Multiple Description and Multi-Path Routing for Robust Voice Transmission over Ad Hoc Networks
Abstract
Achieving real-time voice communication over a mobile wireless ad hoc network poses many challenges both in speech coding and network protocols. In this paper, we investigate the real-time voice transmission capacity of ad hoc networks using a multiple description coding (MDC) scheme along with a new multi-path routing protocol called MSBR. The MDC generates two or more complementary bitstreams from the bitstream of the speech encoder, each sent along different routes. This allows the receiver to maintain acceptable speech quality even with missing packets. MSBR algorithm attempts to find multiple reliable stable routes to the destination node. Simulations using the GloMoSim network simulator and speech audio evaluation setups were used to study the performances of the approach in different network scenarios. Results show that the MDC scheme, together with MSBR, makes an effective use of the network and provides good performances for real time voice transmission
Year
DOI
Venue
2006
10.1109/WIMOB.2006.1696400
Wireless and Mobile Computing, Networking and Communications, 2006.
Keywords
Field
DocType
audio coding,mobile radio,real-time systems,routing protocols,speech coding,GloMoSim network simulator,MDC scheme,MSBR,mobile wireless ad hoc network,multipath routing protocol,multiple description coding,network protocol,real-time voice transmission capacity,speech audio evaluation setup,speech coding
Mobile ad hoc network,Multiple description coding,Speech coding,Computer science,Voice activity detection,Computer network,Real-time computing,Optimized Link State Routing Protocol,GloMoSim,Wireless ad hoc network,Routing protocol
Conference
ISBN
Citations 
PageRank 
1-4244-0494-0
1
0.40
References 
Authors
8
3
Name
Order
Citations
PageRank
Kwong, M.D.110.40
Soumaya Cherkaoui218740.89
Lefebvre, R.39318.55