uwl多径衰落信道的分集技术当信道于深度衰落时(信道对传输于其中的信号衰减比较大时)，接收端的判决信息会出现错误，分集技术就是为了减小此类错误的发生。分集技术的思想是提供给接收机同一信号经过几个独立路径到达的几个信号。-uwl multipath fading channel sub-set of technical

Three Timing Synchronization Methods Based on Two Same Preambles for OFDM Systems The purpose of this paper is to propose two fast timing synchronization methods of OFDM System which has two preamble symbols, the two preamble symbols are used for S

Synchronization in OFDM With its robustness against multipath fading, orthogonal frequency division multiplexing (OFDM) has become the modulation of choice for many modern wireless standards. However, OFDM is very sensitive to offsets in f

Timing Synchronization for 802.11a WLANs under Multipath Channels In the Wireless Local Area Network (WLAN) standard adopted by the IEEE 802.11a standardization group, each data packet starts with a preamble, which consists of ten short train