Efficient scheduling techniques for high data-rate wireless personal area networks
International Journal of Sensor Networks
An RL-based scheduling algorithm for video traffic in high-rate wireless personal area networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Resource Allocation in High Data Rate Mesh WPAN: A Survey Paper
Wireless Personal Communications: An International Journal
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In wireless personal area networks (WPANs), the successful design of channel time allocation algorithm is a key factor in guaranteeing the various quality of service (QoS) requirements for the stringent real-time constraints of multimedia services. In this paper we propose a dynamic channel time allocation algorithm for providing delay guarantees to multimedia traffics such as MPEG streams in the IEEE 802.15.3 high-rate WPANs. The dynamic algorithm exploits the characteristics of MPEG stream, wherein devices (DEVs) send their channel time requests near at the end of superframe. The algorithm uses mini packets for feedback control in order to deliver dynamic parameters for channel time requests from DEVs to the piconet coordinator (PNC). In this scheme, the duration of channel time allocated to a DEV during a superframe is changed dynamically depending on the MPEG frame type, traffic load and delay bound of the frame, etc. Performance of the proposed scheme is investigated by simulation. Our results show that compared to conventional scheme, the proposed scheme is very effective and has high performance while guaranteeing the delay bound.