independent space-time codes
Single Carrier Frequency Domain Equalization with Space Time Trellis Codes
... In the Rayleigh fading channel, the Ricean factor equals to zero. Therefore, the average pairwise error probability (PEP, or simply P C ( → E ) ) between two ar- bitrary codewords C and E over independent and ...
9
Cooperative space time codes with network coding
... Cooperative communications has been a hot topic for research since its introduction by Sendonaris et al. [1-3] in 1998. The reason for the popularity of the idea is that it gives a way to exploit the multiple-input ...
8
Performance Evaluation of Space Time Block Codes Using Bit Error Rate in MIMO Systems
... The main idea of transmit diversity is to provide a diversity and/or coding gain by sending redundant signals over multiple transmit antennas (in contrast to spatial multiplexing, where independent bit sequences ...
9
High-Rate Codes That Are Linear in Space and Time
... transmits independent data streams on its antennas there is no built-in spatial or temporal coding, and hence none of the error resilience associated with such ...
21
Design & Analysis of Space Time Trellis Codes for Different Fading Channels
... as space-time block ...diversity space-time block code (STBC) design is not ...to space-time trellis codes (STTC) that provide full diversity as well as significant coding ...
6
Performance Analysis of Space Time Block Codes in Flat Fading MIMO Channels with Offsets
... of time intervals over which, respectively, pilot sym- bols and unknown symbols are transmitted, F consists of data formatting matrix [S t S] corresponding to one frame; S t and S being the pilot symbol matrix and ...
7
Precoding design for space time codes and relay selection with a novel scheme for multiple relay systems
... of independent sub-problems which can be solved in lower ...joint space-time coding technology can improve SER performance of the system effectively compared with only space-time coding ...
10
A Design Method of Noncoherent Unitary Space Time Codes
... Y H B W (2) where Y is T N received signal matrix for nonco- herent model or N t matrix for coherent model, H is M N or N M fading coefficients matrix and W is T N or N t additive noise matrix. Elements of H ...
6
Space Time Codes for Wireless Optical Communications
... Notice that we have assumed that the path gains are log- normally distributed, but we have only used the fact that they are independent and identically distributed with zero mean, unit variance, and finite fourth ...
10
Transmission and Reception of Grey Scale Image Through Rayleigh Channel Using Concatenated STBC and Different Channel Codes
... Space Time Block Codes: One of the methodologies for exploiting the capacity in MIMO system consists of using the additional diversity of MIMO systems, namely spatial diversity, to combat channel ...
5
Power Allocation Strategies for Distributed Space-Time Codes in Amplify-and-Forward Mode
... (vi) We propose two power allocation schemes for AF DSTC based on minimizing the target SER, given the knowledge of statistical CSI of source-relay links at the relays. An outstanding feature of the proposed schemes is ...
13
Cascaded orthogonal space–time block codes for wireless multi hop relay networks
... Since independent symbol decoding is not ML, COSTBCs entail an unavoidable coding gain loss, how- ever, we show that at least in terms of diversity gain there is no loss compared to ML ...
15
A Novel Decoder for Unknown Diversity Channels Employing Space Time Codes
... For the simulations, we used the 16-QAM 16-state STC de- scribed in Section 2 with two transmit antennas and two re- ceive antennas. The channel coe ffi cients were generated as samples of independent complex ...
8
Space-Time Coded OFDM with Low PAPR
... We now consider the (4,1,4) (8-state) shaping code. The CCDFs of the resulting PAPRs for the Alamouti scheme with a 4-PSK constellation using M -, T -, and Fano algorithms are shown in Figure 7. The spectral efficiency of ...
9
The nonassociative algebras used to build fast decodable space time block codes
... block codes (STBCs) are used for reliable high rate transmission over wireless digital channels with multiple antennas at both the transmitter and receiver ...a space-time block code is a set of ...
24
Space Time Codes and Concatenated Channel Codes for Wireless Communications
... turbo codes, such as the ( ) arrangement, it is better to protect the parity bits more ...turbo codes, such as the ( ) and ( ) schemes, better performance is achieved by protecting the data bits more ...
33
Interference-free space-time block codes with directional beamforming for future networks
... strengths. Space-time block codes (STBC) and quasi-orthogonal STBC (QO-STBC) including beamforming are multiple-input multiple output (MIMO) system design techniques used to improve data rates and ...
6
Full Diversity Space Time Error Correcting Codes with Low Complexity Receivers
... in the observation. The equalizer consists of a feedforward filter and a feedback filter that can be optimized so as to minimize the mean square error at its output (in such case it is referred as MMSE interference ...
9
Multiple Antenna Channel Codes for Satellite Communication
... channel codes, i.e. Space-Time Block Code, Space-Time Trellis Code and Super- Orthogonal Space-Time Trellis Code, are examined in a satellite communication, comparing the ...
5
Space time block codes with rate >= 1 for power line channels
... any time t, is the result of the combination of the signals emitted by the n transmitting antennas, which is not the case in the power line channel where each phase ideally provides an isolated path to the ...
6