Title :
Topology-Control-based QoS Routing (TLQR) in Wireless Ad Hoc Networks
Author :
Chou, Cheng-Fu ; Suen, Hsien-Ping
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei
Abstract :
Recently, with the rapid development of wireless technologies and the attractive infrastructure-free nature of MANET, there is a growing demand for diverse multimedia applications that require QoS provision in an ad hoc network. In this paper, we propose a topology-control-based QoS routing (TLQR) protocol, which is a distributed scheme to intelligently establish routes with guaranteed end-to-end bandwidth. That is, we provide a simple residual-hop-count procedure to determine whether a node is capable to accept the new connection request or not. In addition, to enhance the network utilization we incorporate a efficient power adjustment into the route discovery procedure. The simulation results show that the TLQR routing scheme is able to (a) figure out a better route not going through the congestion area in the network, and (b) significantly improve the network performance by adaptively adjusting its transmission power, i.e., achieving better spacial reuse of wireless channel. Thus, we believe that it is a promising way to take the topology control into account while designing a QoS routing protocol in an ad hoc network
Keywords :
ad hoc networks; bandwidth allocation; mobile radio; quality of service; telecommunication control; telecommunication network routing; telecommunication network topology; wireless channels; MANET; end-to-end bandwidth; multimedia applications; network utilization; residual-hop-count procedure; topology-control-based QoS routing; wireless ad hoc networks; wireless channel; Ad hoc networks; Bandwidth; Centralized control; Communication system control; Computer science; Mobile ad hoc networks; Mobile communication; Network topology; Peer to peer computing; Routing protocols;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2006 IEEE 17th International Symposium on
Conference_Location :
Helsinki
Print_ISBN :
1-4244-0329-4
Electronic_ISBN :
1-4244-0330-8
DOI :
10.1109/PIMRC.2006.254168