Efficient Wireless Broadcasting through Joint Network Coding and Beamforming
We develop a framework that exploits network coding (NC) and multiple-input/multiple-output (MIMO) techniques, jointly together, to improve throughput of downlink broadcast channels. Specifically, we consider a base station (BS) equipped with multiple transmit antennas that serves multiple mobile st...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2012-01-01
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| Series: | International Journal of Digital Multimedia Broadcasting |
| Online Access: | http://dx.doi.org/10.1155/2012/342512 |
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| _version_ | 1832548952461803520 |
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| author | Monchai Lertsutthiwong Thinh Nguyen Bechir Hamdaoui |
| author_facet | Monchai Lertsutthiwong Thinh Nguyen Bechir Hamdaoui |
| author_sort | Monchai Lertsutthiwong |
| collection | DOAJ |
| description | We develop a framework that exploits network coding (NC) and multiple-input/multiple-output (MIMO) techniques, jointly together, to improve throughput of downlink broadcast channels. Specifically, we consider a base station (BS) equipped with multiple transmit antennas that serves multiple mobile stations (MSs) simultaneously by generating multiple signal beams. Given the large number of MSs and the small number of transmit antennas, the BS must decide, at any transmission opportunity, which group of MSs it should transmit packets to, in order to maximize the overall throughput. We propose two algorithms for grouping MSs that take advantage of NC and the orthogonality of user channels to improve the overall throughput. Our results indicate that the proposed techniques increase the achievable throughput significantly, especially in highly lossy environments. |
| format | Article |
| id | doaj-art-6591892e581b483fabe223100c738c02 |
| institution | Kabale University |
| issn | 1687-7578 1687-7586 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Digital Multimedia Broadcasting |
| spelling | doaj-art-6591892e581b483fabe223100c738c022025-02-03T06:12:32ZengWileyInternational Journal of Digital Multimedia Broadcasting1687-75781687-75862012-01-01201210.1155/2012/342512342512Efficient Wireless Broadcasting through Joint Network Coding and BeamformingMonchai Lertsutthiwong0Thinh Nguyen1Bechir Hamdaoui2School of EECS, Oregon State University, Corvallis, OR 97331, USASchool of EECS, Oregon State University, Corvallis, OR 97331, USASchool of EECS, Oregon State University, Corvallis, OR 97331, USAWe develop a framework that exploits network coding (NC) and multiple-input/multiple-output (MIMO) techniques, jointly together, to improve throughput of downlink broadcast channels. Specifically, we consider a base station (BS) equipped with multiple transmit antennas that serves multiple mobile stations (MSs) simultaneously by generating multiple signal beams. Given the large number of MSs and the small number of transmit antennas, the BS must decide, at any transmission opportunity, which group of MSs it should transmit packets to, in order to maximize the overall throughput. We propose two algorithms for grouping MSs that take advantage of NC and the orthogonality of user channels to improve the overall throughput. Our results indicate that the proposed techniques increase the achievable throughput significantly, especially in highly lossy environments.http://dx.doi.org/10.1155/2012/342512 |
| spellingShingle | Monchai Lertsutthiwong Thinh Nguyen Bechir Hamdaoui Efficient Wireless Broadcasting through Joint Network Coding and Beamforming International Journal of Digital Multimedia Broadcasting |
| title | Efficient Wireless Broadcasting through Joint Network Coding and Beamforming |
| title_full | Efficient Wireless Broadcasting through Joint Network Coding and Beamforming |
| title_fullStr | Efficient Wireless Broadcasting through Joint Network Coding and Beamforming |
| title_full_unstemmed | Efficient Wireless Broadcasting through Joint Network Coding and Beamforming |
| title_short | Efficient Wireless Broadcasting through Joint Network Coding and Beamforming |
| title_sort | efficient wireless broadcasting through joint network coding and beamforming |
| url | http://dx.doi.org/10.1155/2012/342512 |
| work_keys_str_mv | AT monchailertsutthiwong efficientwirelessbroadcastingthroughjointnetworkcodingandbeamforming AT thinhnguyen efficientwirelessbroadcastingthroughjointnetworkcodingandbeamforming AT bechirhamdaoui efficientwirelessbroadcastingthroughjointnetworkcodingandbeamforming |