Title :
A Low-Complexity Channel Estimation Method for IEEE802.11a and HIPERLAN/2 WLANs
Author :
Shi Feng ; Hu Dengpeng ; Zhang Eryang
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Abstract :
In this paper, we propose a new channel estimation method for IEEE802.11a and HIPERLAN/2 wireless LANs. Based on the frequency coherence of the channel for wireless LANs, the absent frequency channel responds at virtual subcarriers and DC subcarrier are reconstructed by linear interpolation firstly, then channel estimation with time domain truncation is fulfilled. Simulation results show that the proposed method achieves a slightly better performance than the conventional iterative method and LS method while keeping less complexity.
Keywords :
channel estimation; interpolation; wireless LAN; DC subcarrier; HIPERLAN/2 WLAN; IEEE802.11a WLAN; absent frequency channel; iterative method; least squares method; linear interpolation; low-complexity channel estimation method; time domain truncation; virtual subcarriers; wireless local area networks; Channel estimation; Electronic mail; Frequency estimation; Interpolation; Iterative methods; Noise measurement; Noise reduction; OFDM; Reconstruction algorithms; Wireless LAN; Channel estimation; linear interpolation reconstruction (LIR); low-complexity; wireless LAN;
Conference_Titel :
Communication Software and Networks, 2010. ICCSN '10. Second International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-5726-7
Electronic_ISBN :
978-1-4244-5727-4
DOI :
10.1109/ICCSN.2010.101
