Abstract
We derive asymptotic upper bounds of the performance of a one-shot MMSE multiuser detector (MUD) and an optimal MUD in frequency-selective fading DS-CDMA channels with imperfect CSI at the receiver, using the replica method. We find that the performance bound of the one-shot MMSE MUD is indistinguishable from the performance of the one-shot LMMSE MUD analyzed by Evans and Tse when signal-to-noise ratio is high and the system load is small, and that the performance gap between the optimal MUD and the one-shot LMMSE MUD is also small on the same conditions.
Original language | English |
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Title of host publication | 2008 International Symposium on Information Theory and its Applications, ISITA2008 |
Publisher | IEEE Institute of Electrical and Electronic Engineers |
ISBN (Electronic) | 978-1-4244-2069-8 |
ISBN (Print) | 978-1-4244-2068-1 |
DOIs | |
Publication status | Published - 1 Dec 2008 |
MoE publication type | A4 Article in a conference publication |
Event | 2008 International Symposium on Information Theory and its Applications, ISITA2008 - Auckland, New Zealand Duration: 7 Dec 2008 → 10 Dec 2008 |
Conference
Conference | 2008 International Symposium on Information Theory and its Applications, ISITA2008 |
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Country/Territory | New Zealand |
City | Auckland |
Period | 7/12/08 → 10/12/08 |