Title :
Symbol and carrier frequency offset synchronization for IEEE802.16e
Author :
Lin, Jyun-Nan ; Chen, Hsiao-Yun ; Wei, Ting-Chen ; Jou, Shyh-Jye
Author_Institution :
Dept. of Electron. Eng., Nat. Chiao-Tung Univ., Hsinchu
Abstract :
IEEE 802.16e standard has been proposed as a specification for the next generation wireless communication system. Synchronization plays an important role for a wireless receiver. Because the repetition of preamble is unapparent in orthogonal frequency division multiple access (OFDMA) modulation mode, a correlation based scheme like match filter is used to estimate the symbol boundary and integer carrier frequency offset (ICFO). In this paper, an effective hardware architecture of correlation is proposed. By adopting the modified algorithm, mass of multipliers are removed from hardware implementation. Design results show that 56 % area reduction and 64% power saving are achieved. Moreover, a ping-pong algorithm is proposed to increase the accuracy of ICFO synchronization about two orders at most.
Keywords :
broadband networks; correlation methods; frequency division multiple access; mobile radio; radio access networks; radio receivers; synchronisation; IEEE802.16e; carrier frequency offset synchronization; correlation based scheme; integer carrier frequency offset; match filter; next generation wireless communication system; orthogonal frequency division multiple access modulation mode; symbol boundary frequency offset; wireless receiver; Communication standards; Frequency conversion; Frequency estimation; Frequency synchronization; Hardware; Matched filters; Metropolitan area networks; Sampling methods; Wireless LAN; Wireless communication;
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
DOI :
10.1109/ISCAS.2008.4542109
