Different Wireless Schemes using Hybrid Antenna: A Review

Abstract

Progressive involvement in technology development is very crucial for any government if it hopes to keep its own country competitive in the rapidly growing field of wireless communication. With huge demand of internet, traffic increasing tremendously and internet service provider unable to assist excellent QoS. In our research work prime focus will be on three major digital communication techniques which are UWB, OFDM and CDMA. The eventual 3G evolution for CDMA system leads to cdma2000 and many variants of cdma2000 are currently being developed. To develop any technology prime focus is that technology must be economical, simple and energy efficient which can provide optimized QoS. To transfer data from one location to another, antennas are required. In emerging world to provide reliable communication smart antenna are deployed. Basically, hybrid antenna or smart antennas are arrays of antenna which consist multiple transmitter antenna and multiple receiver antenna so that optimized signal can be picked up and processed. Digital modulation techniques provide better QoS than analog modulation techniques