Frequency Domain Channel Estimation and Detection for Impulse Radio Systems
نویسندگان
چکیده
This paper deals with channel estimation, and detection in ultra wide band (UWB) bi-phase impulse modulated systems. We address the single user and the multiuser scenario assuming a direct sequence spreading code division multiple access (DS-CDMA) scheme. The channel estimation and detection approach is single user based, and operates in the frequency domain. In the presence of multiple access interference (MAI) the algorithm is appropriately modified to include the capability of canceling the interference through the exploitation of its frequency domain correlation. The approach can be extended to time-hopped impulse radio systems. Keywords—CDMA, Channel estimation, Frequency domain processing, Impulse modulation, Interference Cancellation, Multiuser Detection, Synchronization, Ultra wide band (UWB).
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