Results 211 to 220 of about 55,541 (250)

Linear toeplitz space time block codes

Proceedings. International Symposium on Information Theory, 2005. ISIT 2005., 2005
In this paper we consider coherent flat fading wireless communication systems with multiple transmitter antennas and single receiver antenna (MISO). We propose a Toeplitz linear space time block code (STBC) that converts an original MISO flat fading channel into a Toeplitz virtual multiple inputs multiple outputs (MIMO) channel.
Jian-Kang Zhang 0002, Jing Liu 0026, Kon Max Wong   +2 more
openaire   +1 more source

On diagonal algebraic space-time block codes

IEEE Transactions on Communications, 2003
Theoretical and practical aspects of diagonal algebraic space-time block codes over n transmit and m receive antennae are examined. These codes are obtained by sending a rotated version of the information symbols over the principal diagonal of the n /spl times/ n space-time matrix over n transmit antennae and n symbol periods.
Mohamed Oussama Damen, Norman C. Beaulieu   +1 more
openaire   +1 more source

Space-time block codes: a capacity perspective

IEEE Communications Letters, 2000
Space-time block codes are a remarkable modulation scheme discovered recently for the multiple antenna wireless channel. They have an elegant mathematical solution for providing full diversity over the coherent, flat-fading channel. In addition, they require extremely simple encoding and decoding.
Sumeet Sandhu, Arogyaswami Paulraj
openaire   +1 more source

On non-linear space-time block codes

IEEE International Conference on Acoustics Speech and Signal Processing, 2002
A number of space-time block codes have been proposed for the quasi-static, flat-fading channel with coherent receiver. All of these block codes are linear codes, i.e., the encoded codeword is a linear function of the input scalar symbols. Here we propose new non-linear space-time block codes, i.e., the codewords are non-linear functions of the input ...
Sumeet Sandhu, Arogyaswami Paulraj, Krishna Pandit   +2 more
openaire   +1 more source

High Rate Space Time Block Codes

IEICE Transactions on Communications, 2006
High Rate Space-Time Block Codes (HR-STBCs) with greater than 1 symbol/transmission and simple decoding schemes are proposed. The HR-STBC demonstrates 3 dB E b /N 0 gain at BER = 10 -3 compared with the conventional STBC when three transmit antennas and two receive antennas are utilized.
Jaehak Chung, Seung Hoon Nam, Chan-Soo Hwang   +2 more
openaire   +1 more source

Block Coded Modulation for Space-Time Signaling

2006 IEEE International Symposium on Information Theory, 2006
This paper presents a method for increasing the coding gain of all varieties of space-time block codes (STBC), without using a trellis or introducing dependency between successive transmission blocks, using ideas from Block-Coded Modulation (BCM). For a given STBC, we first increase the constellation size, then prune the codewords of the expanded ...
Mohammad Janani, Aria Nosratinia
openaire   +1 more source

On an Orthogonal Space-Time-Polarization Block Code

Journal of Communications, 2009
Over the past several years, diversity methods such as space, time, and polarization diversity have been successfully implemented in wireless communications systems. Orthogonal space-time block codes efficiently combine space and time diversity, and they have been studied in detail.
Beata J. Wysocki, Tadeusz A. Wysocki, Sarah Spence Adams   +2 more
openaire   +1 more source

Space-Time Block Coding for Wireless Communications

2003
Space-time coding is a technique that promises greatly improved performance in wireless networks by using multiple antennas at the transmitter and receiver. Space-Time Block Coding for Wireless Communications, first published in 2003, is an introduction to the theory of this technology.
Erik G. Larsson, Petre Stoica
openaire   +1 more source

Power adaptation in space-time block code

GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002
Transmission power adaptations are considered in a space-time block code (STBC) system utilizing feedback channel gain information. We investigate the optimal power adaptation scheme that minimizes the average BER subject a fixed average transmission power constraint.
Myeongsook Seo, Sang Wu Kim
openaire   +1 more source

Differential space-time block-diagonal codes

Science in China Series F: Information Sciences, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhendong Luo, Yuanan Liu, Jinchun Gao
openaire   +1 more source