JWCN_V1_N1_A2 M.S. Sujatha Vijaya Kumar M. Journal On Wireless Communication Networks 2320 - 2351 1 1 8 18 Automatic Metering Reading (AMR), Load Tap Changer (LTD), Transformer Inelegant Module (TIM), Code Division Multiple Access (CDMA), Data Collection Module (DCM), Central processing Module (CPM) Two-way and robust communication is the key aspect of realizing the vision of power system protection. There are several standardized wired and wireless communication echnologies available for various power system applications. Wireless technologies have significant benefits over wired, such has improved protection, control, speed outage restoration, operation analysis, maintenance, planning and also have low installation and maintenance cost, rapid deployment, mobility, etc. Several activities are going on in many areas of power system using this technology. This paper presents various power system applications achieved through standardized wireless communication technologies, e.g. IEEE 802.11 based wireless LAN, IEEE 802.16 based WiMAX, 3G/4G cellular, ZigBee based on IEEE 802.15, IEEE 802.20 based MobileFi, Blue tooth-IEEE802.15.1 etc. The challenges related to wire and wireless communication technologies have been discussed in brief. Addition to this, advantages of cellular communication is discussed. April - June 2012 Copyright © 2012 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=1852