Title :
Is the cyclic prefix necessary?
Author :
Sharma, Naresh ; Tikku, Ashok A.
Author_Institution :
Indian Inst. of Technol., Delhi
Abstract :
We show that one can do away with the cyclic prefix (CP) for SC-FDE and OFDM at the cost of a moderate increase in complexity of a DFT-based receiver. Such an approach effectively deals with the decrease in the number of channel uses due to the introduction of the CP. It is shown that the SINR for SC-FDE remains the same asymptotically with the proposed receiver without CP as that of the conventional receiver with CP
Keywords :
OFDM modulation; discrete Fourier transforms; equalisers; DFT-based receiver; OFDM; SC-FDE; cyclic prefix; Convolution; Costs; Data communication; Discrete Fourier transforms; Equalizers; Filters; Frequency division multiplexing; Intersymbol interference; OFDM; Signal to noise ratio;
Conference_Titel :
Information Theory, 2006 IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
1-4244-0505-X
Electronic_ISBN :
1-4244-0504-1
DOI :
10.1109/ISIT.2006.261688
