Abstract
In this paper, a new iterative interference cancellation multiuser detection (MUD) method is proposed for overloaded multiple-input multiple-output (MIMO) coded orthogonal frequency division multiplexing (OFDM) systems. In the first iteration, a channel analyzer and selector are employed, which ensure that non-convergent channels are not used. Then low complexity RAKE reception is applied, and a successive interference cancellation (SIC)-based approach is used such that the strongest user is decoded first. In each iteration, the soft output of the convolutional decoder is fed back to cancel inter-user interference using parallel interference cancellation (PIC). The simulation results show that, this technique can achieve near-optimum bit error rate (BER) performance, and optimum frame error rate (FER) performance, with lower complexity than optimum maximum likelihood (ML) methods at the cost of 4% of channels rejected.
| Original language | English |
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| Title of host publication | IEEE Vehicular Technology Conference |
| Pages | 1-5 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 1 Dec 2013 |
| Event | 2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013 - Dresden, United Kingdom Duration: 2 Jun 2013 → 5 Jun 2013 |
Conference
| Conference | 2013 IEEE 77th Vehicular Technology Conference, VTC Spring 2013 |
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| Country/Territory | United Kingdom |
| City | Dresden |
| Period | 2/06/13 → 5/06/13 |
Keywords
- MIMO
- MUD
- OFDM
- PIC
- RAKE