Abstract | ||
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In this paper, a multi-user multi-relay network with wireless energy harvesting (EH) and transferring (ET) is studied. In our system, a simultaneous two-level cooperation, i.e., information-level and energy-level cooperation is conducted for uplink data transmissions (from the users to a destination). Specifically, network coding is employed at the relays to facilitate the information-level cooperation; meanwhile, ET is adopted to share the harvested energy among the users for the energy-level cooperation. The energy minimization problem that takes into account the energy causality and outage probability constraints is formulated. However, the optimization problem is non-convex and hard to be solved directly. Alternatively, an approximation technique is adopted to convert it into a convex one. By solving the convex problem, efficient power allocation and ET policies are designed. Numerical results show that the proposed algorithm is able to achieve a near-optimal performance and outperforms the state of arts. |
Year | Venue | Field |
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2017 | 2017 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | Linear network coding,Computer science,Energy harvesting,Computer network,Communications system,Wireless sensor network,Convex optimization,Optimization problem,Energy minimization,Telecommunications link |
DocType | ISSN | Citations |
Conference | 1550-3607 | 0 |
PageRank | References | Authors |
0.34 | 10 | 6 |
Name | Order | Citations | PageRank |
---|---|---|---|
Nan Qi | 1 | 2 | 0.71 |
Ming Xiao | 2 | 188 | 24.86 |
Theodoros A. Tsiftsis | 3 | 1406 | 116.77 |
lin zhang | 4 | 2 | 2.80 |
Mikael Skoglund | 5 | 22 | 6.07 |
Hui-sheng Zhang | 6 | 159 | 24.84 |