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The needs for location-aware applications are increasing with the popularity of ubiquitous mobile computing. However, as an important factor affecting the positioning performance, the deployment of anchor nodes has received little attention during the past years. In this paper we investigate the anchor placement in the received signal strength (RSS) based wireless localization systems. An optimization...
This paper studies a two-link interference channel (IFC) with simultaneous wireless information and power transfer (SWIPT). We aim to maximize the minimum signal to interference plus noise ratio (SINR) of the two links by jointly designing the power allocations at the transmitters and the power splitting (PS) ratios at the receivers under both the individual minimum energy harvesting (EH) constraints...
This paper studies the optimal resource allocation problem for the relay-assisted orthogonal frequency-division multiple-access (OFDMA) -based multiuser system. A new transmission protocol, named hierarchical OFDMA, is proposed to support two-way transmissions between the base station (BS) and each mobile user (MU) with or without an assisting relay station (RS) in "relay" or "direct"...
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