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A low complexity architecture for the cell search applied to the LTE systems

Golnari, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1109/ICECS.2012.6463742
  3. Publisher: 2012
  4. Abstract:
  5. Cell search is a crucial process in the synchronization procedure for the 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) system. In this paper, a high-speed, low-complexity and reliable architecture is proposed for both steps of cell search: sector ID and cell ID group detection. For the sector ID detection, two novel methods, sign-bit reduction and wise resource sharing, are proposed. In addition, for the cell ID group detection, we proposed an algorithm based on the Maximum Likelihood Sequence Detection (MLSD) called 'sign-bit MLSD'. Simulations show that the proposed methods result in more than 90% reduction in area compared to the state-of-the-art. We designed and synthesized the architecture using a 130nm CMOS technology, resulting in 0.11 mm2 core area and estimated power consumption of 1.4mW
  6. Keywords:
  7. Cell search ; Cell-ID ; CMOS technology ; Core area ; Group detection ; Low-complexity ; Low-complexity architecture ; LTE systems ; Maximum-likelihood sequence detection ; Novel methods ; Resource sharing ; CMOS integrated circuits ; Wireless telecommunication systems ; Mobile telecommunication systems
  8. Source: 2012 19th IEEE International Conference on Electronics, Circuits, and Systems, ICECS 2012, 9 December 2012 through 12 December 2012 ; Dec , 2012 , Pages 300-303 ; 9781467312615 (ISBN)
  9. URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6463742