Space-Time Block Coded Systems in Wireless Communication

Space time block coding is a technique used in wireless communications to transmit multiple copies of a data stream across a number of antennas and to exploit the various received versions of the data to improve the reliability of data transfer.Moreover this is an effective and practical way to approach the demands of MIMO wireless channel.This is a coding technique designed for use with multiple transmits antennas, to increase data rate, capacity and spectral efficiency.As originally introduced, and as usually studied, these are orthogonal in nature but with one most serious drawback that these sacrifice some proportion of their data rate.So, we use quasi-orthogonal STBC s that achieve higher data rates at the cost of inter-symbol interference.

Autorentext

The author received his Master's and Bachelor's degree in ECE from PTU,India in 2008 & 2001.He has been working as an Assistant Professor in SBSSTC,Punjab,India.The author is a reviewer of various National and International Societies like Elsevier, Hindawi Publications and IJSER.His area of interest is Signal Processing and Wireless Communications.