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arXiv 1602.08658cs.NIcs.ITmath.IT
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多跳无线体域网通信中的干扰避免算法(IAA)

Interference Avoidance Algorithm (IAA) for Multi-hop Wireless Body Area Network Communication

Mohamad Jaafar Ali, Hassine Moungla, Ahmed Mehaoua

摘要:

在本文中,我们提出了一个分布式的多跳干扰避免算法,即IAA,以避免在无线体域网(WBAN)内的同频干扰。我们的建议采用载波侦听多址接入与冲突避免(CSMA/CA)之间的源和中继和中继和协调器之间的灵活的时分多址接入(FTDMA)。所提出的方案使低干扰节点使用基本信道发送消息。根据合适的情况,高干扰节点的竞争窗口(CW)增加一倍,可能使用切换正交信道。仿真结果表明,该方案具有更好的最小信干噪比(12 dB的改善)和更长的能量寿命比其他方案(功率控制和机会中继)。此外,我们在理论分析中验证了我们的建议,并提出了一个概率的方法来证明中断概率可以有效地降低到最小。

英文摘要:

In this paper, we propose a distributed multi-hop interference avoidance algorithm, namely, IAA to avoid co-channel interference inside a wireless body area network (WBAN). Our proposal adopts carrier sense multiple access with collision avoidance (CSMA/CA) between sources and relays and a flexible time division multiple access (FTDMA) between relays and coordinator. The proposed scheme enables low interfering nodes to transmit their messages using base channel. Depending on suitable situations, high interfering nodes double their contention windows (CW) and probably use switched orthogonal channel. Simulation results show that proposed scheme has far better minimum SINR (12dB improvement) and longer energy lifetime than other schemes (power control and opportunistic relaying). Additionally, we validate our proposal in a theoretical analysis and also propose a probabilistic approach to prove the outage probability can be effectively reduced to the minimal.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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