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Device-to-Device (D2D) communication underlaying cellular networks will become an important technology in future networks such as IMT-Advanced to improve spectral efficiency. In order to enhance the overall system performance, the mutual interference between cellular and D2D communication caused by reusing the spectrum should be properly coordinated and channel allocation is considered as one of the...
Some MAC protocols such as CSMA/CA, MACA adopt backoff mechanism when collisions occur in hidden terminal problem. In this paper, backoff mechanism is entirely abandoned. Instead, the basic idea of PCF is applied to solve hidden terminal problem. When collisions occur at a node, the node considers that there is more than one node means to transmit data to it. Then this node gets control of the channel...
We propose a wireless spectrum sharing framework based on waiting-line auction. Our framework includes both spectrum assignment and power allocation; it is designed to maximize the primary user??s profits as well as to optimize the overall rate under secondary users?? minimal rate requirements. On secondary users?? side, it is proved that bidders could achieve equilibrium bids according to Nash equilibrium...
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