Premium
Low‐complexity joint detection of carrier frequency offset and sector cell index for LTE cellular system
Author(s) -
Kim ByungKyu,
Song HyoungKyu,
You YoungHwan
Publication year - 2014
Publication title -
international journal of communication systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.344
H-Index - 49
eISSN - 1099-1131
pISSN - 1074-5351
DOI - 10.1002/dac.2859
Subject(s) - computer science , telecommunications link , computational complexity theory , offset (computer science) , carrier frequency offset , frequency offset , joint (building) , real time computing , algorithm , orthogonal frequency division multiplexing , telecommunications , channel (broadcasting) , architectural engineering , engineering , programming language
Summary In this paper, we propose a low‐complexity joint detection of sector cell index and integer carrier frequency offset for a long‐term evolution downlink system. In order to implement a low‐cost detection scheme, a primary synchronization signal used for joint parameter estimation is grouped into a number of subsets so that the pilots in each subset are strongly correlated. The estimation performance and the computational load of the proposed scheme are compared with those of the commonly used conventional detection scheme using a differential correlation to remove common channel effects. It is found that the proposed scheme can jointly detect the cell index and integer carrier frequency offset with higher accuracy and much lower complexity, compared with the conventional scheme. Copyright © 2014 John Wiley & Sons, Ltd.