Abstract
This paper studies receiver antenna selection (AS) for multi-antenna systems operating over frequency selective channels, where the channel state information (CSI) is neither known at the transmitter nor at the receiver. We consider AS for noncoherent space-time-frequency (STF) coded orthogonal frequency division multiplexing (OFDM) systems that employ unitary signals. An OFDM receiver with a single RF chain is employed, and the selection is based on the received signal power, where the receive antenna with the largest received signal power averaged over all subcarriers is chosen. Theoretical analysis and simulations show that using AS, the maximum spatial and multipath diversity can still be obtained without CSI at the receiver, the same as the full-complexity multi-antenna OFDM systems. We simplify code design and decoding using subcarrier grouping, which enables us to apply existing full diversity codes for noncoherent STF-OFDM systems to each group, in order to obtain maximum spatial and multipath diversity when AS is used. We also present a low-complexity suboptimal decoder that achieves full diversity and can be easily implemented in practice.
| Original language | English (US) |
|---|---|
| Title of host publication | 2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings |
| Pages | 1665-1669 |
| Number of pages | 5 |
| DOIs | |
| State | Published - 2007 |
| Event | 2006 40th Annual Conference on Information Sciences and Systems, CISS 2006 - Princeton, NJ, United States Duration: Mar 22 2006 → Mar 24 2006 |
Other
| Other | 2006 40th Annual Conference on Information Sciences and Systems, CISS 2006 |
|---|---|
| Country | United States |
| City | Princeton, NJ |
| Period | 3/22/06 → 3/24/06 |
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ASJC Scopus subject areas
- Computer Science(all)
Cite this
Antenna selection for noncoherent space-time-frequency coded OFDM systems. / Ma, Qian; Tepedelenlioglu, Cihan.
2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings. 2007. p. 1665-1669 4068068.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Antenna selection for noncoherent space-time-frequency coded OFDM systems
AU - Ma, Qian
AU - Tepedelenlioglu, Cihan
PY - 2007
Y1 - 2007
N2 - This paper studies receiver antenna selection (AS) for multi-antenna systems operating over frequency selective channels, where the channel state information (CSI) is neither known at the transmitter nor at the receiver. We consider AS for noncoherent space-time-frequency (STF) coded orthogonal frequency division multiplexing (OFDM) systems that employ unitary signals. An OFDM receiver with a single RF chain is employed, and the selection is based on the received signal power, where the receive antenna with the largest received signal power averaged over all subcarriers is chosen. Theoretical analysis and simulations show that using AS, the maximum spatial and multipath diversity can still be obtained without CSI at the receiver, the same as the full-complexity multi-antenna OFDM systems. We simplify code design and decoding using subcarrier grouping, which enables us to apply existing full diversity codes for noncoherent STF-OFDM systems to each group, in order to obtain maximum spatial and multipath diversity when AS is used. We also present a low-complexity suboptimal decoder that achieves full diversity and can be easily implemented in practice.
AB - This paper studies receiver antenna selection (AS) for multi-antenna systems operating over frequency selective channels, where the channel state information (CSI) is neither known at the transmitter nor at the receiver. We consider AS for noncoherent space-time-frequency (STF) coded orthogonal frequency division multiplexing (OFDM) systems that employ unitary signals. An OFDM receiver with a single RF chain is employed, and the selection is based on the received signal power, where the receive antenna with the largest received signal power averaged over all subcarriers is chosen. Theoretical analysis and simulations show that using AS, the maximum spatial and multipath diversity can still be obtained without CSI at the receiver, the same as the full-complexity multi-antenna OFDM systems. We simplify code design and decoding using subcarrier grouping, which enables us to apply existing full diversity codes for noncoherent STF-OFDM systems to each group, in order to obtain maximum spatial and multipath diversity when AS is used. We also present a low-complexity suboptimal decoder that achieves full diversity and can be easily implemented in practice.
UR - http://www.scopus.com/inward/record.url?scp=44049097758&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=44049097758&partnerID=8YFLogxK
U2 - 10.1109/CISS.2006.286402
DO - 10.1109/CISS.2006.286402
M3 - Conference contribution
AN - SCOPUS:44049097758
SN - 1424403502
SN - 9781424403509
SP - 1665
EP - 1669
BT - 2006 IEEE Conference on Information Sciences and Systems, CISS 2006 - Proceedings
ER -