Sciweavers

46 search results - page 3 / 10
» Transport throughput of secondary networks in spectrum shari...
Sort
View
CORR
2008
Springer
125views Education» more  CORR 2008»
13 years 5 months ago
Power Control in Cognitive Radio Networks: How to Cross a Multi-Lane Highway
Abstract--We consider power control in cognitive radio networks where secondary users identify and exploit instantaneous and local spectrum opportunities without causing unacceptab...
Wei Ren, Qing Zhao, Ananthram Swami
GLOBECOM
2007
IEEE
13 years 11 months ago
Performance Analysis of a Wireless Network with Opportunistic Spectrum Sharing
— We analyze the performance of a wireless system that allows opportunistic spectrum sharing. The system consists of a set of primary users sharing a set of channels over a cover...
Shensheng Tang, Brian L. Mark
WCNC
2008
IEEE
13 years 11 months ago
Stochastic Spectrum Pool Reassignment for Cognitive Relay Systems
— We consider a cognitive wireless relay system that operates on secondary spectrum sharing basis using spectrum pooling. A spectrum pool comprises of a set of available narrowba...
Ashish Pandharipande, Chin Keong Ho
VTC
2008
IEEE
13 years 11 months ago
Impact of the Primary Network Activity on the Maximum Achievable Capacity of DS-CDMA/OFDM Spectrum Sharing
Abstract— In this paper, we analyze DS-CDMA/OFDM spectrum sharing system based on opportunistic spectrum access (OSA). In this system, the primary network air interface is based ...
Mohammad G. Khoshkholgh, Keivan Navaie, Halim Yani...
TWC
2008
225views more  TWC 2008»
13 years 5 months ago
Joint rate and power allocation for cognitive radios in dynamic spectrum access environment
Abstract--We investigate the dynamic spectrum sharing problem among primary and secondary users in a cognitive radio network. We consider the scenario where primary users exhibit o...
Dong In Kim, Long Le, Ekram Hossain