369 search results - page 29 / 74 » A Distributed Opportunistic Access Scheme for OFDMA Systems |
100
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SC
2000
ACM
15 years 4 months ago
2000
ACM
This paper investigates the performance implications of data placement in OpenMP programs running on modern ccNUMA multiprocessors. Data locality and minimization of the rate of r...
ICC
2007
IEEE
15 years 6 months ago
2007
IEEE
— In this paper, we develop contention-based medium access control (MAC) schemes for both best-effort data transmissions and delay-sensitive multimedia transmissions over WLANs. ...
112
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QSHINE
2005
IEEE
15 years 5 months ago
2005
IEEE
In this paper, we first propose an analytical model of WLANs (Wireless LANs) with an arbitrary backoff distribution and AIFS (Arbitration Inter-Frame Space). From the analysis, we ...
CDC
2008
IEEE
15 years 6 months ago
2008
IEEE
—We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooper...
102
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VISUALIZATION
2005
IEEE
15 years 5 months ago
2005
IEEE
We propose a distributed data management scheme for large data visualization that emphasizes efficient data sharing and access. To minimize data access time and support users wit...