Results 241 to 250 of about 4,679,817 (265)

Full rate full diversity space-time block code selection for more than two transmit antennas

IEEE Transactions on Wireless Communications, 2007
In this paper, we propose a full rate space-time block code selection technique, which achieves full diversity when more than two transmit antennas are used for transmission.
M. Çelebi, S. Sahin, Ümit Aygölü
semanticscholar   +1 more source

On the algebraic structure of the Silver code: A 2 × 2 perfect space-time block code

2008 IEEE Information Theory Workshop, 2008
Recently, a family of full-rate, full-diversity space-time block codes (STBCs) for 2 times 2 multiple-input multiple-output (MIMO) channels was proposed in the works of Tirkkonen et al., using a combination of Clifford algebra and Alamouti structures ...
C. Hollanti, J. Lahtonen, K. Ranto, Roope Vehkalahti, E. Viterbo   +4 more
semanticscholar   +1 more source

Power-Balanced Orthogonal Space–Time Block Code

IEEE Transactions on Vehicular Technology, 2008
In this paper, we propose two new systematic ways to construct amicable orthogonal designs (AODs), with the aim of facilitating the construction of power-balanced orthogonal space-time block codes (O-STBCs) with favorable practical attributes.
C. Yuen, Y. Guan, T. Tjhung
semanticscholar   +1 more source

Space-frequency block code for single-carrier FDMA

, 2008
A full-diversity space-frequency block code (SFBC) for single-carrier frequency-division multiple access (SC-FDMA) systems is presented. The code is designed for two transmit antennas and preserves the low envelope fluctuations of SC signals.
Cristina Ciochină, D. Castelain, D. Mottier, H. Sari   +3 more
semanticscholar   +1 more source

Block code reconstruction using iterative decoding techniques

2006 IEEE International Symposium on Information Theory, 2006
In this paper, we present a new algorithm for recovering a linear block code from noisy codewords. To achieve this, we introduce a version of Gallager algorithm with weighted parity-check equations.
M. Cluzeau
semanticscholar   +1 more source

Detection schemes for space-time block code and spatial multiplexing combined system

IEEE Communications Letters, 2005
Space-time block code is combined with spatial multiplexing technique over multiple-input multiple-output system to take advantages of both schemes.
Lan Zhao, V. Dubey
semanticscholar   +1 more source

A large-scale and low-power CAM architecture featuring a one-hot-spot block code for IP-address lookup in a network router

IEEE Journal of Solid-State Circuits, 2005
We propose a new CAM architecture for the large-scale integration and low-power operation of a network router application. This CAM reduces entry count by an average of 52%, using a newly developed one-hot-spot block code. This code eliminates redundancy
S. Hanzawa, T. Sakata, K. Kajigaya, R. Takemura, T. Kawahara   +4 more
semanticscholar   +1 more source

Improved high-rate space-time codes via concatenation of expanded orthogonal block code and M-TCM

2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2002
In this paper, we propose a new technique for designing an improved high-rate space-time code. The proposed code construction is based on a typical concatenation of a space-time block code and an outer TCM/MTCM encoder.
S. Siwamogsatham, M. Fitz
semanticscholar   +1 more source

A high-rate orthogonal space-time block code

IEEE Communications Letters, 2003
We present a space-time block code from complex orthogonal designs for 5 transmit antennas, which can send 10 information symbols in a block of 15 channel uses and hence have rate 2/3.
Xue-Bin Liang
semanticscholar   +1 more source

High-rate concatenated space-time block code M-TCM designs

IEEE Transactions on Information Theory, 2005
In this paper, a new technique to design improved high-rate space-time (ST) codes is proposed based on the concept of concatenated ST block code (STBC) and outer trellis-coded modulation (M-TCM) encoder constructions.
S. Siwamogsatham, M. Fitz
semanticscholar   +1 more source