An on-demand, link-state, multi-path QoS routing in a wireless mobile ad-hoc network

Yuh Shyan Chen*, Yu-Chee Tseng, Jang Ping Sheu, Po Hsuen Kuo

*Corresponding author for this work

Research output: Contribution to journalArticle

50 Scopus citations


The peer-to-peer multimedia applications have recently generated much interest in wireless network infrastructure with supporting the quality-of-service (QoS) communications. In this paper, we propose a new on-demand QoS routing, namely link-state multi-path QoS routing, protocol in a wireless mobile ad-hoc network (MANET). Our proposed scheme offers a bandwidth routing protocol for QoS support in a multihop mobile network. Our QoS routing protocol determines the end-to-end bandwidth calculation and bandwidth allocation at the destination. Our protocol collects link bandwidth information from source to destination in order to construct a network topology with the information of link bandwidth at the destination. To satisfy a given bandwidth requirement, the bandwidth calculation of the QoS route are determined at the destination to accurately determine the QoS uni-path or multi-path route depending on the status of network bandwidth. Our routing scheme may offer a multi-path route if a MANET with the insufficient network bandwidth, and provide a uni-path route if the network bandwidth is sufficient. The destination eventually determines the QoS multi-path routes and replies to the source host to perform the bandwidth reservation. Our routing scheme obviously improves the success rate of identifying a QoS route, and the simulation result demonstrates this improvement.

Original languageEnglish
Pages (from-to)27-40
Number of pages14
JournalComputer Communications
Issue number1
StatePublished - 1 Jan 2004


  • CDMA-over-TDMA
  • Mobile ad-hoc network
  • Mobile computing
  • Multi-path
  • Quality-of-service routing
  • Wireless network

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