Name
Abstract | ||
|---|---|---|
In this paper, we address the problem of optimally placing relay nodes in a cellular network with the aim of maximizing cell capacity. In order to accurately model interference, we use a dynamic framework, in which users arrive at random time instants and locations, download a file and leave the system. A fixed point equation is solved to account for the interactions between stations. We also propose an extension of a fluid model to relay based cellular networks. This allows us to obtain quick approximations of the Signal to Interference plus Noise Ratio (SINR) that are very close to 3GPP LTE-A guideline results in terms of SINR distribution. We then use these formulas to develop a dedicated Simulated Annealing (SA) algorithm, which adapts dynamically the temperature to energy variations and uses a combination of coarse and fine grids to accelerate the search for an optimized solution. Simulations results are provided for both in-band and out-of-band relays. They show how relays should be placed in a cell in order to increase the capacity in case of uniform and non-uniform traffic. The crucial impact of the backhaul link is analyzed for in-band relays. Insights are given on the influence of shadowing. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.1109/TWC.2013.010214.130814 | IEEE Transactions on Wireless Communications |
Keywords | Field | DocType |
relay networks (telecommunication),3gpp lte-a guideline,relay,processor sharing,backhaul link,approximation theory,nonuniform traffic,fluid model,dynamic framework,out-of-band relays,optimal placement,random time instants,optimal relay placement,3g mobile communication,approximations,in-band relays,long term evolution,fixed point equation,cell capacity,signal to interference plus noise ratio,telecommunication traffic,cellular networks,cellular network,simulated annealing,optimally placing relay nodes,shadow mapping,silicon,signal to noise ratio,optimization,interference | Simulated annealing,Relay channel,Mathematical optimization,Backhaul (telecommunications),Computer network,Approximation theory,Signal-to-interference-plus-noise ratio,Cellular network,Interference (wave propagation),Relay,Mathematics | Journal |
Volume | Issue | ISSN |
13 | 2 | 1536-1276 |
Citations | PageRank | References |
14 | 0.64 | 25 |
Authors | ||
6 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Mattia Minelli | 1 | 29 | 2.76 |
| Maode Ma | 2 | 1255 | 163.24 |
| Marceau Coupechoux | 3 | 402 | 48.44 |
| Jean Marc Kelif | 4 | 135 | 22.43 |
| Marc Sigelle | 5 | 316 | 34.12 |
| Philippe Godlewski | 6 | 367 | 49.91 |