DocumentCode :
1847394
Title :
Achievable rates in the SIMO-Uplink/MISO-downlink of an FDD system with imperfect CSI
Author :
Castañeda, Mario ; Chathoth, Anup ; Nossek, Josef A.
Author_Institution :
Lehrstuhl fur Netzwerktheorie und Signalverarbeitung, Tech. Univ. Munchen, Munich, Germany
fYear :
2009
fDate :
7-10 Sept. 2009
Firstpage :
121
Lastpage :
125
Abstract :
In practical systems, the available CSI for coherent transmission can not always be assumed to be perfect. For instance, in the MISO-downlink of a single-user FDD system with multiple antennas at the BS and a single antenna at the user, the available transmit CSI is actually estimated, quantized, outdated and affected by feedback errors. On the other hand, in the reverse link of this FDD system, i.e. the SIMO-uplink, the available receive CSI is only estimated. The two links of this FDD system represent a two-way system, in which we encounter a tradeoff between the MISO-downlink and SIMO-uplink rate due to the feedback of the transmit CSI in the uplink. Taking into account this tradeoff, we analyze the achievable rates in both links of the described FDD system considering imperfect CSI and limited feedback.
Keywords :
antenna arrays; frequency division multiplexing; MISO-downlink; SIMO-uplink; base station; channel state information; coherent transmission; feedback errors; frequency division duplex system; imperfect CSI; multiple antennas; multiple-input single-output system; single antenna; single-input multiple-output system; single-user FDD system; Antenna feeds; Array signal processing; Delay; Downlink; Electronic design automation and methodology; Feedback; Payloads; Receiving antennas; Transmitters; Transmitting antennas;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Wireless Communication Systems, 2009. ISWCS 2009. 6th International Symposium on
Conference_Location :
Tuscany
Print_ISBN :
978-1-4244-3584-5
Electronic_ISBN :
978-1-4244-3584-5
Type :
conf
DOI :
10.1109/ISWCS.2009.5285255
Filename :
5285255
Link To Document :
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