Call For Paper Volume:4 Issue:8 Aug'2017 |

ANALYSIS OF CHANNEL PERFORMANCE IN RATE AND POWER ALLOCATION SYSTEM FOR MIMO COGNITIVE RADIO NETWORKS

Publication Date : 31/03/2015



Author(s) :

E.VIDHYA , Ms.D.SATHYAKALA.


Volume/Issue :
Volume 2
,
Issue 3
(03 - 2015)



Abstract :

In this paper, the hybrid system allocates the power and rate in MIMO cognitive radio networks. It increases the efficiency of spectrum utilization. Cognitive radio is a form of wireless communication in which a transceiver can intelligently detect which communication channels are in use and instantly move in to vacant channels. Here the primary system employs a HARQ protocol. When the primary system retransmits the data signal, the secondary system serves as a relay for the retransmission of the primary system and simultaneously transmits its data signal. The average throughput of primary and secondary systems can be determined by using (LAT) Long- term average throughput. The main constraint is that the average throughput of primary system with secondary system is not less than primary system alone. Numerical results show that the primary system does not lose the average throughput, and rather achieves an additional throughput gain by adjusting the fraction of the transmit power of the secondary system.


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ANALYSIS OF CHANNEL PERFORMANCE IN RATE AND POWER ALLOCATION SYSTEM FOR MIMO COGNITIVE RADIO NETWORKS

March 15, 2015