Investigation of energy efficiency of two-way relay-assisted multi-band machine-to-machine communications

Hoang Thien Van, Vo Tien Anh, Danh Hong L., Chi Duong Thi Kim, Hoang-Sy Nguyen


In this paper, we improve the uplink energy efficiency (EE) of the multi-band machine-to-machine (M2M) communications underlaying cellular networks. In particular, based on the theory of stochastic geometry, we derive the closed-form expressions of the outage probability (OP), and the average energy efficiency of cellular and Machine-to-Machine users in two-way cooperative relaying networks with three-time-slot setting. We ensure the quality of service (QoS) by considering the OP and the average energy efficiency of all links. It is concluded that the three-time-slot relay-aided Machine-to-Machine communication can offer considerably high QoS and low transmission power for fairly distant machine-to-machine networks.


Energy efficiency; Machine-to-machine; Outage probability; Relaying network; Three-time-slot

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