講演名 | 2011-12-12 Network Modulation : A New Dimension to Enhance Wireless Network Performance(JC-SAT 2011) , |
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抄録(英) | We have witnessed the explosive growth of the Internet, and the growth will even accelerate in the coming few decades, thanks to the ever-increasing demand for ubiquitous network services, anywhere, anytime, and with any devices. Cross-layer protocol design and optimization is a promising direction for next generation terrestrial and satellite wireless networks. In this talk, we introduce an approach called network modulation which gives us a new dimension to improve wireless network throughput and save energy. In current wireless systems, when a source transmits data to the receiver through a single-hop or multi-hop wireless path, the physical layer modulates and demodulates the information bits hop-by-hop, and the transmission over each hop is treated the same as in a point-to-point communication link. Given the broadcast nature of wireless medium and the wide variation of wireless channel quality, we let a sender transmit messages to multiple receivers simultaneously, using a software mapping technology, called network modulation, to redefine the constellation of typical quadrature amplitude modulation (QAM) schemes. Network modulation can be used to improve network performance in a wide range of scenarios, for anycast (broadcast, multicast and unicast) multimedia services, one-way or two-way traffic, and single-hop or multi-hop wireless paths. |
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キーワード(英) | Cross-layer design / modulation / wireless networks |
資料番号 | SAT2011-49 |
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研究会情報 | |
研究会 | SAT |
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開催期間 | 2011/12/5(から1日開催) |
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申込み研究会 | Satellite Telecommunications (SAT) |
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本文の言語 | ENG |
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タイトル(英) | Network Modulation : A New Dimension to Enhance Wireless Network Performance(JC-SAT 2011) |
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キーワード(1)(和/英) | / Cross-layer design |
第 1 著者 氏名(和/英) | / Lin CAI |
第 1 著者 所属(和/英) | Department of Electrical and Computer Engineering, University of Victoria |
発表年月日 | 2011-12-12 |
資料番号 | SAT2011-49 |
巻番号(vol) | vol.111 |
号番号(no) | 336 |
ページ範囲 | pp.- |
ページ数 | 8 |
発行日 |