An Adaptive Medium Access Control (MAC) Protocol for Reliable Broadcast in Wireless Networks
نویسندگان
چکیده
Ab.wacrThis paper presents ABROAD, an adaptive medium access control (MAC) protocol for reliable broadcast packet transmission in wireless networks. ABROAD incorporates a collision-avoidance handshake within each slot of a synchronous transmission schedule, allowing nodes to reclaim and/or rewe idle slots while maintaining bounded ac. cess delay. Thus, ABROAD provides worst-case performance guarantees while remaining adaptive to local changes in traffic load and node eonnectivity. We analyze the optimal worst-case performance of ABROAD, and show that there is a strict increase in the number of broadcast pack. cts per second ovcr a pure time division multiple access (TDMA) protocol. Extensive simulation confirms our analysis, and also demonslrates that ABROAD aulperfoms broadcast protocols based an reliable unicast packet delivery schemes, such as the IEEE 802.11 MAC standard.
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