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107
Voted
GLOBECOM
2007
IEEE
15 years 7 months ago
2007
IEEE
Abstract—We explore the performance tradeoff between opportunistic and regulated access inherent in the design of multiuser cognitive radio networks. We consider a cognitive radi...
82
Voted
ICC
2007
IEEE
15 years 7 months ago
2007
IEEE
— In this paper, a family of low-density parity-check (LDPC) degree distributions, whose decoding threshold on the binary erasure channel (BEC) admits a simple closed form, is pr...
104
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ICC
2007
IEEE
15 years 7 months ago
2007
IEEE
We consider opportunistic spectrum access for secondary users over multiple channels whose occupancy by primary users is modeled as discrete-time Markov processes. Due to hardware...
115
Voted
ICC
2007
IEEE
15 years 7 months ago
2007
IEEE
— We consider the problem of joint end-to-end rate optimization and radio resource management in wireless OFDMA-based mesh networks. Radio units equipped with multiple radio inte...
102
Voted
ICC
2007
IEEE
15 years 7 months ago
2007
IEEE
—Opportunistic scheduling in random beamforming maximizes the sum-rate by allocating resources to the users with the best channel condition, thus leveraging on multiuser diversit...