Title :
An adaptive fault tolerant algorithm for multimedia cellular networks
Author :
Kim, Sungwook ; Varshney, Pramod K.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Syracuse Univ., NY, USA
Abstract :
The design of reliable and fault-tolerant resource management algorithms for cellular networks is an important issue. In this paper, we develop an adaptive fault tolerance scheme via the combination of reuse partitioning and dynamic bandwidth assignment strategies. Our fault tolerance approach provides a trade off between fault tolerance capability and the total carried traffic in cellular networks. Bandwidth management during base station failures is dynamic and is based on real time estimates of current network conditions. Our online algorithm is quite flexible, is responsive to current traffic conditions, and tries to strike an appropriate performance balance between contradictory requirements for QoS sensitive multimedia services. With a simulation study, we demonstrate the excellent performance of our scheme for diverse scenarios including failure modes.
Keywords :
bandwidth allocation; cellular radio; fault tolerance; multimedia communication; quality of service; telecommunication network management; telecommunication network reliability; telecommunication traffic; QoS; adaptive fault tolerant algorithm; bandwidth management; dynamic bandwidth assignment; multimedia cellular network; quality of service; resource management algorithm; reuse partitioning; total carried traffic; Algorithm design and analysis; Bandwidth; Base stations; Communication system traffic control; Computer network reliability; Fault tolerance; Land mobile radio cellular systems; Partitioning algorithms; Resilience; Telecommunication traffic;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual
Print_ISBN :
0-7803-7757-5
DOI :
10.1109/VETECS.2003.1208840
