Low Complexity Linear Space-Time Codes
نویسندگان
چکیده
A new modulation method for linear space-time codes is proposed based on using constellations of different sizes for different symbols. The proposed method significantly reduces the complexity of the sphere decoding algorithm.
منابع مشابه
Characterization of $2times 2$ full diversity space-time codes and inequivalent full rank spaces
In wireless communication systems, space-time codes are applied to encode data when multiple antennas are used in the receiver and transmitter. The concept of diversity is very crucial in designing space-time codes. In this paper, using the equivalent definition of full diversity space-time codes, we first characterize all real and complex $2times 2$ rate one linear dispersion space-...
متن کاملA new lattice decoding for space time block codes with low complexity
We present an algorithm based on the closest point search (CPS) in lattices for decoding of space-time block codes (STBC). The modified CPS algorithm based on the Schnorr-Euchner variation of the Pohst method is used to perform the decoding of STBC. This method is shown to be substantially faster than other known sphere decoding methods. Also we exploit a fast method for decoding of orthogonal ...
متن کاملSearch Based Weighted Multi-Bit Flipping Algorithm for High-Performance Low-Complexity Decoding of LDPC Codes
In this paper, two new hybrid algorithms are proposed for decoding Low Density Parity Check (LDPC) codes. Original version of the proposed algorithms named Search Based Weighted Multi Bit Flipping (SWMBF). The main idea of these algorithms is flipping variable multi bits in each iteration, change in which leads to the syndrome vector with least hamming weight. To achieve this, the proposed algo...
متن کاملFull-Diversity Space-Time Error Correcting Codes with Low-Complexity Receivers
We propose an explicit construction of full-diversity space-time block codes, under the constraint of an error correction capability. Furthermore, these codes are constructed in order to be suitable for a serial concatenation with an outer linear forward error correcting (FEC) code. We apply the binary rank criterion, and we use the threaded layering technique and an inner linear FEC code to de...
متن کاملBlind Adaptive MIMO Receivers for CDMA Systems with Space-Time Block-Codes and Low-Cost Algorithms
In this paper we present low-complexity blind multi-input multi-output (MIMO) adaptive linear multiuser receivers for direct sequence code division multiple access (DSCDMA) systems using multiple transmit antennas and spacetime block codes (STBC) in multipath channels. A spacetime code-constrained constant modulus (CCM) design criterion based on constrained optimization techniques and low-compl...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2004