Abstract
Previous studies have found that the Multiple Access Interference (MAI) effect is strongly associated with which sequence pairs are spread over Multiple-Input Multiple-Output Space–Time Spreading (MIMO-STS) systems. An improved method of determining which sequence pairs are to be spread is proposed. The choice of these pairs from the selected spreading code families results in a number of ways to mitigate the MAI effects. A Software Defined Radio (SDR) test bed system has been developed to evaluate the selected spreading sequences, in an attempt to mitigate the MAI effects over 2 1 MIMO-STS systems. The SDR test bed results reveal that, for a number of the spreading sequence families, improved transmission properties for asynchronous transmission can be achieved.
Original language | English (US) |
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Pages (from-to) | 24-97 |
Number of pages | 74 |
Journal | International Journal of Radio Frequency Identification Technology and Applications |
Volume | 5 |
Issue number | 1 |
DOIs | |
State | Published - 2018 |
Keywords
- MAI
- MIMO
- Pairs
- SDR test bed.
- Spreading sequences
ASJC Scopus subject areas
- Electrical and Electronic Engineering