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)|
|Number of pages||74|
|Journal||International Journal of Radio Frequency Identification Technology and Applications|
|State||Published - Jan 1 2018|
- SDR test bed.
- Spreading sequences
ASJC Scopus subject areas
- Electrical and Electronic Engineering