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In this paper, we focus on the bandwidth allocation and reallocation scheme which uses multimode wireless access networks to guarantee the QoS of streaming services. The utility function for streaming service is proposed, which characterizes the rate adaptation and handoff delay in heterogeneous network scenario. The utility function for network provider takes into account the number of serving end...
IPTV service has to guarantee the quality of service, like the existing broadcasting service. Providing QoS guarantee is an essential condition for IPTV service. To support the QoS-guaranteed IPTV service, the service over best-effort networks should consider both delay and packet loss caused by network congestion. With the rapid growth of wireless access networks, IPTV service should also consider...
The emerging IEEE 802.16j mobile multi-hop relay (MMR) network is currently being developed to increase the user throughput and extend the service coverage as an enhancement of existing 802.16e standard. In 802.16j, the intermediate relay stations (RSs) help the base station (BS) communicate with those mobile stations (MSs) that are either too far away from the BS or placed in an area where direct...
In this paper, we study bandwidth management of a wireless/optical based access/metro network in support of voice and data services. For voice services, we use a finite state Markov Chain to estimate the blocking probability of voice circuits over an Adaptive modulation and coding wireless channel, as a function of the channel parameters. For data services, we evaluate a rate matching and a buffer...
In this paper, we propose a useful framework for the cross-layer design and analysis of wireless networks where ARQ (automatic repeat reQuest) and AMC (adaptive modulation and coding) schemes are employed. To capture the joint effect of the packet transmission error rate at the PHY layer and the packet loss probability at the MAC layer, we introduce the effective bandwidth function of the packet service...
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