Partial Feedback Based Orthogonal Block Coding
نویسندگان
چکیده
Over the last couple of years a number of spacetime block codes have been proposed for use in multiple transmit antennas systems. In this article we propose a method to extend any space-time code constructed for m transmit antennas to m p transmit antennas through GroupCoherent Codes (GCC). GCC make use of very limited feedback from the receiver (as low as one bit). In particular the scheme can be used to extend any orthogonal code (e.g. Alamouti code) to more than 2 antennas while preserving low decoding complexity, full diversity benefits and full data rate.
منابع مشابه
Partial Feedback Based Orthogonal Space-Time Block Coding With Flexible Feedback Bits
The conventional orthogonal space-time block code (OSTBC) with limited feedback has fixed feedback bits for the specific transmit antennas. A new partial feedback based OSTBC which provides flexible feedback bits is proposed in this paper. The proposed scheme inherits the properties of having a simple decoder and the full diversity of OSTBC, moreover, preserves full data rate. Simulation result...
متن کاملAdaptive Channel Matched Extended Alamouti Space-time Code Exploiting Partial Feedback
Biljana Badic et al. 443 Since the publication of Alamouti’s famous space-time block code, various quasi-orthogonal space-time block codes (QSTBC) for multi-input multi-output (MIMO) fading channels for more than two transmit antennas have been proposed. It has been shown that these codes cannot achieve full diversity at full rate. In this paper, we present a simple feedback scheme for rich sca...
متن کاملSingle-Carrier Frequency-Domain Equalization for Orthogonal STBC over Frequency-Selective MIMO-PLC channels
In this paper we propose a new space diversity scheme for broadband PLC systems using orthogonal space-time block coding (OSTBC) transmission combined with single-carrier frequency-domain equalization (SC-FDE). To apply this diversity technique to PLC channels, we first propose a new technique for combining SC-FDE with OSTBCs applicable to all dispersive multipath channels impaired by impulsive...
متن کاملCooperative Orthogonal Space-Time-Frequency Block Codes over a MIMO-OFDM Frequency Selective Channel
In this paper, a cooperative algorithm to improve the orthogonal space-timefrequency block codes (OSTFBC) in frequency selective channels for 2*1, 2*2, 4*1, 4*2 MIMO-OFDM systems, is presented. The algorithm of three node, a source node, a relay node and a destination node is formed, and is implemented in two stages. During the first stage, the destination and the relay antennas receive the sym...
متن کاملPre-coded Orthogonal Space-Time Block Codes over MIMO Channel and its Analysis for Antenna Selection Technique
A pre-coder is designed for orthogonal space-time block codes (OSTBCs) in multiple-input multiple-output (MIMO) channels. Unlike previous works, our pre-coder is the first to be designed to minimize the exact symbol error rate. In this paper, we show that OSTBCs can achieve full diversity and nearly strict orthogonality with a small amount of feedback bits returned from the receiver back to the...
متن کامل