Media access and error control protocols for wireless ATM
Date
1997
Authors
Abou El-Nour, Mohamed
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Abstract
A TM is a technology that is expected to unify the currently separate networks used for voice, video, and data applications while satisfying the desired quality of service (QoS) required by each traffic type. ATM was chosen as the technology for broadband integrated services digital networks (B-ISDN) backbone supporting all kinds of traffic types at high channel speed. On the other hand, wireless communications provide voice and data services for mobile and remote users. Thus, wireless A TM provides mobiles and remote users a reliable access to the fiber-optic based A TM network. In this work, we propose solutions for two main problems encountered in wireless channels, poor channel utilization and high bit error rate (BER). We propose an adaptive shared media access protocol that achieves higher channel utilization than conventional packet reservation multiple access (PRMA) protocol, and a hybrid error control protocol that achieves higher throughput than traditional automatic repeat request (ARQ) and forward error correction (FEC) protocols. The proposed protocols were numerically simulated and the results indicated that better channel utilization and higher channel throughput were achieved.