Blind Channel Estimation for Space-Time Coded WCDMA
نویسندگان
چکیده
منابع مشابه
Blind Channel Estimation for Space-Time Coded WCDMA
A new blind channel estimation technique is proposed for space-time coded wideband CDMA systems using aperiodic and possibly multirate spreading codes. Using a decorrelating front end, the received signal is projected onto a subspace from which channel parameters can be estimated up to a rotational ambiguity. Exploiting the subspace structure of the WCDMA signaling and the orthogonality of the ...
متن کاملJoint blind and semi-blind detection and channel estimation for space-time trellis coded systems
This paper considers a Multiple-Input Multiple-Output (MIMO) communication system, which uses Space-Time Trellis Coding (STTC). A novel method of decoding STTC without a need to transmit training sequences is developed. The technique uses only a single channel estimate to acquire a complete set of the channels’ estimates while performing STTC detection. The method is akin to blind trellis searc...
متن کاملSpace-Time Coded MC-CDMA: Blind Channel Estimation, Identifiability, and Receiver Design
Integrating the strengths of multicarrier (MC) modulation and code division multiple access (CDMA), MC-CDMA systems are of great interest for future broadband transmissions. This paper considers the problem of channel identification and signal combining/detection schemes for MC-CDMA systems equipped with multiple transmit antennas and space-time (ST) coding. In particular, a subspace-based blin...
متن کاملMaximum Likelihood Blind Channel Estimation for Space-Time Coding Systems
Sophisticated signal processing techniques have to be developed for capacity enhancement of future wireless communication systems. In recent years, space-time coding is proposed to provide significant capacity gains over the traditional communication systems in fading wireless channels. Space-time codes are obtained by combining channel coding, modulation, transmit diversity, and optional recei...
متن کاملAdaptive Channel Estimation in Space-Time Coded MIMO Systems
Space-time codes are an effective and practical way to exploit the benefits of spatial diversity in multiple-input, multiple-output (MIMO) systems. As the name suggests, the coding of space-time codes is performed in both the spatial and the temporal domains, introducing correlation between signals transmitted by different antennas at different time instants. At the receiver, this space-time co...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EURASIP Journal on Wireless Communications and Networking
سال: 2004
ISSN: 1687-1499
DOI: 10.1155/s1687147204406070