| Presentation | 2010-03-03 Network MIMO As A Bargaining Game Oussama SOUIHLI, Tomoaki OHTSUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A mobile station (MS) is on the edge of a network cell, such that it can receive signals from the current Base Station (BS), BS_1 and a neighboring BS, BS_2. To avoid inter-cell interference on the cell-edge MS, the network operator wants to use both BSs to send data to MS, in an Network-MIMO fashion. Under such framework, we state the power allocation problem as follows: How much transmitpower p_1, p_2, should each BS use such that the total signal received by MS has a guaranteed quality SNR = γ_0 dB? We attempt, in this report, to answer this question from two different perspectives. In the first, we study the power allocation problem as a constrained global optimization problem, where the aim is to minimize the total transmit power (the sum of the transmit powers of the BSs) under the receive signal quality constraint. In the second approach, we study the power allocation problem from a cooperative game theory perspective, by viewing the problem as a bargaining game in which the players (the BSs) aim at minimizing their respective transmit powers only. By deriving closed-form expressions of the optimal transmit powers for each approach, we find two main differences between them. First, in the global optimization approach, the required transmit powers from each BS are function of the noise levels of both channels, while in the bargaining game approach, these are function of their respective noises only, thereby characterizing the selfish behavior of the players. Second, the bargaining approach favors the BS with the better channel conditions (by requiring less power from this BS, w.r.t. the global optimization approach). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Network MIM0 / Cooperative Communications / Power Allocation / Game Theory |
| Paper # | RCS2009-266 |
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| Committee | RCS |
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| Conference Date | 2010/2/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Radio Communication Systems (RCS) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Network MIMO As A Bargaining Game |
| Sub Title (in English) | |
| Keyword(1) | Network MIM0 |
| Keyword(2) | Cooperative Communications |
| Keyword(3) | Power Allocation |
| Keyword(4) | Game Theory |
| 1st Author's Name | Oussama SOUIHLI |
| 1st Author's Affiliation | Department of Information and Computer Sciences, Keio University() |
| 2nd Author's Name | Tomoaki OHTSUKI |
| 2nd Author's Affiliation | Department of Information and Computer Sciences, Keio University |
| Date | 2010-03-03 |
| Paper # | RCS2009-266 |
| Volume (vol) | vol.109 |
| Number (no) | 440 |
| Page | pp.pp.- |
| #Pages | 6 |
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