Design and Characterization of a Full-Duplex Multiantenna System for WiFi Networks
| Autor: | Rittwik Jana, Vaneet Aggarwal, Ashutosh Sabharwal, Nemmara K. Shankaranarayanan, Christopher W. Rice, Melissa Duarte, Kadangode K. Ramakrishnan |
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| Rok vydání: | 2014 |
| Předmět: |
Networking and Internet Architecture (cs.NI)
FOS: Computer and information sciences Computer Networks and Communications Orthogonal frequency-division multiplexing Computer science WiFi ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS Multi antenna Mode (statistics) Physical layer Aerospace Engineering Duplex (telecommunications) Throughput Data_CODINGANDINFORMATIONTHEORY Backward compatibility Computer Science - Networking and Internet Architecture media access control (MAC) orthogonal frequency-division multiplexing (OFDM) Automotive Engineering Electronic engineering Full-duplex Electrical and Electronic Engineering Throughput (business) Protocol (object-oriented programming) 802.11 |
| Zdroj: | IEEE Transactions on Vehicular Technology. 63:1160-1177 |
| ISSN: | 1939-9359 0018-9545 |
| 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: | OpenAIRE |
| Externí odkaz: |
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