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In this paper, we propose and analyze a new TDMA-based cooperative MAC scheme for the two-way two-hop relay network in which there are several helpers besides a default relay node. The proposed scheme is based on the TDMA-based cooperative relaying MAC (CR-TDMA), which is designed for one-way relay networks, and thus is named as two-way CR-TDMA (TW-CR). As the main contribution of this paper, we derive...
This paper proposes a new TDMA-based cooperative MAC scheme for a two-hop relay network in which there are several helpers besides a default relay node. Here, a helper has lower obligation than the default relay to help packet forwarding. The proposed method is developed from the existing CR-TDMA scheme, and named as opportunistic CR-TDMA or OCR-TDMA. We derive the throughput performance of CR-TDMA...
This paper focuses on the design of high-throughput MAC for data-intensive sensor networks with unpredictable traffic. We propose Log A, a reactive concurrent MAC protocol that increases transmission concurrency based on time log analysis. Each node reactively and passively learns the interference relationship by analyzing the start transmission time and the end transmission time of packet blocks...
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