Performance Analysis of Best-Effort Service in Saturated IEEE 802.16 Networks
Source: City University of Hong Kong
The IEEE 802.16 standard is a promising technology for the fourth-generation mobile networks and is being actively promoted by the WiMAX Forum, an industry-led consortium. Among the various service classes supported in the standard, best-effort service is expected to be the major service class subscribed by users due to its operation simplicity and lower charging rate compared with other service classes. In this paper, the authors investigate the throughput and packet access delay performance of the best effort service using contention-based bandwidth request mechanism in a saturated 802.16 network. In particular, they develop a simple fixed point analysis to approximate the failure probability of a bandwidth request and derive analytical expressions for network throughput and packet access delay.