ANTENNA DIVERSITY TECHNIQUES FOR SC/FDE - A SYSTEM ANALYSIS

摘要

In this work we investigate the possibilities of combining diversity techniques with a Single Carrier System with Frequency Domain Equalization (SC/FDE), as future transmission concepts will also be judged by their possibilities to be combined with multiple antennas. Concepts of multiple antennas allow either a significant performance gain through diversity (and) or significant higher capacity based on spatial multiplexing. While it is topic of many contributions to improve the concepts of antenna diversity itself, it is topic of this paper to point out the advantages when combining SC/FDE with diversity techniques. It will be demonstrated that SC/FDE shows excellent possibilities to be combined with diversity techniques, as the process of equalization itself can be combined with receive diversity as well as with space time block (STBC) decoding, that can be carried out advantageously in the frequency domain. Besides that an overall system approach will be discussed that includes aspects of implementation, equalization, modulation and coding.