Design and Characterization of a Full-duplex Multi-antenna System for WiFi networks
| Autor: | Duarte, Melissa, Sabharwal, Ashutosh, Aggarwal, Vaneet, Jana, Rittwik, Ramakrishnan, K. K., Rice, Christopher, Shankaranarayanan, N. K. |
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| Rok vydání: | 2012 |
| Předmět: | |
| Zdroj: | IEEE Transactions on Vehicular Technology, vol.63, no.3, pp.1160--1177, March 2014 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1109/TVT.2013.2284712 |
| Popis: | In this paper, we present an experimental and simulation based study to evaluate the use of full-duplex as a mode in practical IEEE 802.11 networks. To enable the study, we designed a 20 MHz multi-antenna OFDM full-duplex physical layer and a full-duplex capable MAC protocol which is backward compatible with current 802.11. Our extensive over-the-air experiments, simulations and analysis demonstrate the following two results. First, the use of multiple antennas at the physical layer leads to a higher ergodic throughput than its hardware-equivalent multi-antenna half-duplex counterparts, for SNRs above the median SNR encountered in practical WiFi deployments. Second, the proposed MAC translates the physical layer rate gain into near doubling of throughput for multi-node single-AP networks. The two combined results allow us to conclude that there are potentially significant benefits gained from including a full-duplex mode in future WiFi standards. Comment: 44 page, 11 figures, 8 tables. Submitted to IEEE Transactions on Vehicular Technology, Oct 2012 |
| Databáze: | arXiv |
| Externí odkaz: |
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