A TDOA location scheme in OFDM based WMANs

作者：Ni Hao^*; Ren Guangliang; Chang Yilin

来源：IEEE Transactions on Consumer Electronics, 2008, 54(3): 1017-1021.

DOI：10.1109/TCE.2008.4637581

• orthogonal frequency division multiplexing (OFDM)
• location based services (LBS)
• Wireless Metropolitan Area Networks (WMANs)
• TDOA estimation

A time difference of arrival (TDOA) location scheme for the orthogonal frequency division multiplexing (OFDM) based wireless metropolitan area networks (WMANs) is presented. A novel TDOA estimation algorithm for OFDM signals is proposed and adopted in this scheme, The algorithm enhances the location performance by utilizing the information in the time and frequency domains obtained from the received location OFDM signals. The simulations are implemented with an 802.16e configuration considering an outdoor wireless scenario. The simulation results show that the scheme can meet the E911 requirements in even complex multipath channel conditions, and outperform the location schemes with traditional correlation detection TDOA estimations(1).

• 出版日期2008-8
• 单位西安电子科技大学