Hybrid contention/reservation channel-access schemes for integrated voice/data wireless networks
✍ Scribed by Akira Sugihara; Kei Enomoto; Iwao Sasase
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 326 KB
- Volume
- 81
- Category
- Article
- ISSN
- 8756-6621
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✦ Synopsis
We analyze the performance of the wireless integrated multiple access (WIMA) protocol by applying the fixed contention non-interleaved-frame fixed-length (F-NIFFL) scheme, in which hybrid contention/reservation channel-access schemes are used in integrated voice/data wireless networks. In the proposed scheme, some data packets are first transmitted in the contention-based slots, and the packets which collided or were not transmitted are transmitted in the later reserved slots. A two-dimensional first-order Markov chain model is used for our analysis, and we show that the proposed protocol can decrease the datapacket delay compared to the conventional WIMA with pure reservation NIFFL (PR-NIFFL) scheme, in which all data packets are sent under the reservation access protocol. Therefore, the proposed protocol is more effective in satellite communication networks which may have large roundtrip propagation delay.