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In this paper, power control of secondary user (SU) is investigated. In co-existing network, minimization of interference on primary user (PU) can be achieved through controlling the transmission power of cognitive radio (CR) user. Improved sensing decision reduces the interference on PU (IoPU) efficiently through improved energy detector (IED) based cooperative spectrum sensing (CSS). Allowable maximum...
The transmit power of secondary users (SUs) in an underlay cognitive radio network (CRN) needs to be controlled to limit the interference on primary users (PUs). The performance of spectrum sensing plays an important role in controlling the cognitive radio (CR) transmission power. Co-operative spectrum sensing (CSS) improves the performance of spectrum sensing. Incorporation of Rank-based censoring...
In this paper, a simulation study has been carried out to evaluate performance of joint admission and power control (JAPC) algorithms in Cognitive - CDMA Networks. Performance has been evaluated for SU in an uplink scenario of CDMA network consisting primary user (PU) and secondary user (SU). A numbers of algorithms have been investigated. Long term fading has been assumed in addition to path loss...
CDMA refers to multiple access method in which the individual terminals uses spread spectrum techniques and occupy the entire spectrum whenever they transmit. This feature makes CDMA different from FDMA and TDMA. In the wireless communication, the signal to interference ratio (SIR) and bit error rate (BER) are the predominant parameter that characterizes the system performance. This paper presented...
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