| Presentation | 2012-11-16 A Study on Mode Decision Method and Retransmission Control for Simultaneous Transmission Masashi IWABUCHI, Akira KISHIDA, Toshiyuki SHINTAKU, Tetsu SAKATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Total throughput degrades dramatically due to frame collisions and waiting time when there are many active transmitters using CSMA/CA. A medium access control method for simultaneous transmissions has ever been proposed by the former reports. The proposed method aims to use the capture effect to realize simultaneous transmission and higher overall throughput. However, this method degrades its performance if transmitters can not decide whether simultanous transmission is possible at receiver. This paper proposes two decision methods and evaluates thier performances. In the proposed methods, transmitters decide whether thier transmission can be done simultanously based on a received Signal-to-Interference Ratio(SIR). The received SIR is estimated from Received Signal Strength Indicators(RSSIs)obtained from received frames. However, these decision methods may cause degradation of throughput due to an error of SIR estimated by transmitter. In order to solve this problem, a retransmission control is also proposed in this paper. The performance of the proposed methods is evaluated by computer simulations. The simulation results show the proposed methods improve throughput compared with conventional CSMA/CA |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Simultanous transmission / Capture effect / Backoff control / CSMA/CA / IEEE802.11 |
| Paper # | RCS2012-180 |
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| Conference Information | |
| Committee | RCS |
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| Conference Date | 2012/11/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Mode Decision Method and Retransmission Control for Simultaneous Transmission |
| Sub Title (in English) | |
| Keyword(1) | Simultanous transmission |
| Keyword(2) | Capture effect |
| Keyword(3) | Backoff control |
| Keyword(4) | CSMA/CA |
| Keyword(5) | IEEE802.11 |
| 1st Author's Name | Masashi IWABUCHI |
| 1st Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation() |
| 2nd Author's Name | Akira KISHIDA |
| 2nd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| 3rd Author's Name | Toshiyuki SHINTAKU |
| 3rd Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| 4th Author's Name | Tetsu SAKATA |
| 4th Author's Affiliation | NTT Access Network Service Systems Laboratories, NTT Corporation |
| Date | 2012-11-16 |
| Paper # | RCS2012-180 |
| Volume (vol) | vol.112 |
| Number (no) | 286 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |