11561 search results - page 1942 / 2313 » Open Distributed Processing |
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
— We consider a point-to-multipoint cognitive radio network that shares a set of channels with a primary network. Within the cognitive radio network, a base station (BS) controls...
128
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
—Direct sequence spread spectrum (DSSS) technique has been widely used in both military communications and commercial communications. On the other hand, it is a challenge to both...
155
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
– MIMO (Multiple Input Multiple Output) is capable of offering several-fold increase in spectral efficiency over singleantenna systems through spatial processing. However, curren...
136
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
Abstract— This paper addresses when and how to adjust bandwidth allocations between uplink and downlink in a multi-service wireless network with bandwidth asymmetry under dynamic...
134
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
— We examine the Shannon limits of communication systems when the precision of the analog-to-digital conversion (ADC) at the receiver is constrained. ADC is costly and powerhungr...