The Multi carrier OFDM Code Division Multiple Access Scheme
| Full Text |
Pdf
|
| Author | Muyiwa B. Balogun |
| ISSN | 2306-708X |
| On Pages | 21-24 |
| Volume No. | 2 |
| Issue No. | 2 |
| Issue Date | ------- |
| Publishing Date | ------ |
| Keywords | OFDM, CDMA, OFDM-CDMA |
Abstract
The combination of the orthogonal frequency division multiplexing (OFDM) and the code division multiple access (CDMA) to form the OFDM-CDMA scheme has gained popularity in the field of mobile communication because of its numerous advantages, which include its ability to combat multiple access interference and its high efficiency in the transmission of high data rate signals. However, this scheme is plagued by multiple access interference (MAI) which affects the efficiency of the scheme. Various multiuser detection techniques have been proposed to combat this challenge but most of the techniques rather lead to higher system complexity. Recently, some papers have investigated and reported the artificial neural network based multiuser detection techniques, which is quite promising. Hence, a comprehensive review is carried out on this important scheme of OFDM-IDMA. Major drawbacks and challenges are highlighted as well, to enhance further studies and research work in this laudable scheme.
Back
