Performance of dynamic frame reservation multiple access-dynamic permission (DFRMA-DP) protocol for integrated voice and data service in wireless communication systems
K. Thanasorravit, A. Charoenpanitkit, Lunchakorn Wuttisittikulkij · 2002
This paper proposes a new media access control (MAC) protocol referred to as dynamic frame reservation multiple access-dynamic permission (DFRMA-DP). The proposed protocol is based on a combination of contention-based and contention-free MAC protocols for supporting integrated voice and data services in wireless communication networks. Communication channels are assigned according to the quality of services (QoS) required by each traffic type. Since speech is a delay sensitive traffic, it is treated as a higher priority service. Channel bandwidth is always used to accommodate speech first, before it is used for data transmission. Computer simulations reveal that the system can allocate bandwidth properly and satisfy the user quality of service requirements. In addition, channel utilization of the system is very high, i.e. 99%, compared with 80% of PRMA and 90% of ALOHA-R. As a result, this protocol is considered suitable for wireless communication.