Open AccessPerformance of Joint Admission and Power Control Algorithms for Cognitive Radio CDMA Networks in Shadowed Environment
Author(s) -
Sanjay Dhar Roy,
Sumit Kundu
Publication year - 2011
Publication title -
international journal of communication networks and security
Language(s) - English
Resource type - Journals
ISSN - 2231-1882
DOI - 10.47893/ijcns.2011.1000
Subject(s) - cognitive radio , log distance path loss model , shadow mapping , joint (building) , power control , path loss , computer science , log normal distribution , code division multiple access , algorithm , blocking (statistics) , statistical power , computer network , path (computing) , power (physics) , real time computing , telecommunications , statistics , mathematics , artificial intelligence , engineering , wireless , architectural engineering , physics , quantum mechanics
Cognitive radio network maximizes number of secondary users (SUs) without affecting the service of primary users (PUs). Admittance of SUs is not only affected by the path loss but also lognormal shadowing. In this paper, we have carried out the simulation study of joint admission and power control (JAPC) algorithms: JAPCMRER and JAPC-MSSRA in presence as well as absence of log-normal shadowing. Combined effect of path loss and log-normal shadowing on total secondary revenue and blocking probability is presented. Comparison between two algorithms for shadowing and non-shadowing cases has been done on basis of different metrics.