Abstract
The IEEE 802.11 standard is the most popular Medium Access Control (MAC) protocol for wireless local area networks. However, in multihop wireless ad hoc networks, the IEEE 802.11 MAC protocol will suffer from more serious hidden terminal and exposed terminal problems than those in single hop WLANs. More specifically, it is due to the “large” interference range and the “large” carrier sensing range. In this paper, we focus on the collisions caused by the existence of large interference range in multihop wireless ad hoc networks and propose an adaptive IEEE 802.11 MAC (AMAC) that makes two simple modifications of IEEE 802.11 RTS/CTS handshake to dynamically adjust the transmission and reception according to the shared medium status near transmitter and receiver, respectively. Simulation results show that our method can lessen interferences and increase system throughput as compared with IEEE 802.11 MAC in the multihop wireless ad hoc networks.
This work was supported under NTPO project NSC91-2219-004-004
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Keywords
- Mobile Node
- Medium Access Control
- Transmission Range
- Medium Access Control Protocol
- Distribute Coordination Function
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© 2004 Springer-Verlag Berlin Heidelberg
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Tsai, TC., Tu, CM. (2004). An Adaptive IEEE 802.11 MAC in Multihop Wireless Ad Hoc Networks Considering Large Interference Range. In: Battiti, R., Conti, M., Cigno, R.L. (eds) Wireless On-Demand Network Systems. WONS 2004. Lecture Notes in Computer Science, vol 2928. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-24614-5_7
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DOI: https://doi.org/10.1007/978-3-540-24614-5_7
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