Abstract
Investigates the problem of improving communication rates for frequency-selective multi-access channels (MACs). In this context, multi-pulse methods offer a new opportunity to revisit MAC approaches that are aware of and exploit channel characteristics. For the single-link case, multi-pulse methods such as OFDM split the channel into a set of orthogonal subchannels, or dimensions, and enable the use of Shannon's water-filling technique to achieve capacity. This paper proposes MAC approaches based on water-filling for high-speed ad-hoc wireless networks. The basic framework divides time into uniform slots; during each interval, the active links must share the subchannels, with each link defined by its set of per-subchannel SNRs. Using this framework, pragmatic protocols are proposed that balance overall capacity and per-link quality of service. They are based on adaptively allocating slots and subchannels using knowledge of the links.
Original language | English (US) |
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Title of host publication | Proceedings - International Conference on Information Technology: Coding and Computing, ITCC 2001 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 178-182 |
Number of pages | 5 |
ISBN (Electronic) | 0769510620, 9780769510620 |
DOIs | |
State | Published - 2001 |
Event | International Conference on Information Technology: Coding and Computing, ITCC 2001 - Las Vegas, United States Duration: Apr 2 2001 → Apr 4 2001 |
Other
Other | International Conference on Information Technology: Coding and Computing, ITCC 2001 |
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Country/Territory | United States |
City | Las Vegas |
Period | 4/2/01 → 4/4/01 |
ASJC Scopus subject areas
- Computer Networks and Communications
- Computer Science Applications
- Information Systems
- Software