1. Different power loading allocation schemes for ofdm based cognitive radio system
Authors : Ajitsinh. N. Jadhav, Sakib. R. Mujawar
Pages : 350-359
DOI : http://dx.doi.org/10.21172/1.81.045
Keywords : Keywords – Cognitive Radio, Orthogonal Frequency Division Multiplexing, Primary User, Secondary User. Abstract :Abstract–In advance wireless technology, security and scarcity of the spectrum are serious problem. With increase in advance wireless technology and demand for wireless multimedia services, facing lack of spectrum. As the radio frequency spectrum is a scarce natural resource so its efficient use is very important. A potential solution to this issue is to allocate the spectrum dynamically by means of cognitive radio system. In this paper, various powers loading algorithm like uniform, water-filling, sub-optimal and optimal algorithm for an OFDM base CR system has been investigated in simulation environment. Present numerical result show that optimal and sub optimal allocation algorithm can achieve higher transmission compare to classical power allocation algorithms namely, uniform and water filling power allocation algorithm. The above power loading algorithm is compared with respective to total transmission power, interference and individual peak power constraints.
Citing this Journal Article :Ajitsinh. N. Jadhav, Sakib. R. Mujawar, "Different power loading allocation schemes for ofdm based cognitive radio system", Volume 8 Issue 1 - January 2017, 350-359
Click here to Submit Copyright Takedown Notice for this article.