Performance Analysis of IDMA Receiver for Efficient Power Optimization Using HSPA+ Technology

Emerging demands for high data rate services and high spectral efficiency are the key driving forces for the continued technology evolution in wireless communications. Third generation (3G) mobile communication systems have already been commercially deployed in certain parts of the world to meet the initial demand for high data rate packet-based services including wireless internet access third Generation Partnership Project(3GPP) of HSPA+ with releases 5 and 6 for downlink and for uplink. The number of HSPA+ enhancements is included in the 3GPP release7 providing high efficiency in networks for end user. To meet the demand for higher data rates and better coverage of wireless networks without increasing bandwidth or acquiring expensive frequency bands, an emerging technology called multiple input multiple output (MIMO) has appeared. MIMO is capable of significantly increasing wireless data throughput to achieve high data rates. Major limitations in MIMO are power allocation, the discrete power allocation game for the fast fading access channel. Each player or transmitter chooses its own transmit power policy from a certain finite set to optimize its individual transmission rate. Here the analysis and optimization of IDMA system using HSPA technology with MIMO implementation was considered. IDMA technique is utilized here for implementation of equal and unequal power allocation for HSPA systems.