空时编码三篇经典文章！！！

Kevinmey

【文件名】:06626@52RD_on performance criterion and code construction.rar
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【大　小】:739K
【简　介】:Abstract—We consider the design of channel codes for improving
the data rate and/or the reliability of communications
over fading channels using multiple transmit antennas. Data is
encoded by a channel code and the encoded data is split into
n streams that are simultaneously transmitted using n transmit
antennas. The received signal at each receive antenna is a linear
superposition of the n transmitted signals perturbed by noise. We
derive performance criteria for designing such codes under the
assumption that the fading is slow and frequency nonselective.
Performance is shown to be determined by matrices constructed
from pairs of distinct code sequences. The minimum rank among
these matrices quantifies the diversity gain, while the minimum
determinant of these matrices quantifies the coding gain. The
results are then extended to fast fading channels. The design
criteria are used to design trellis codes for high data rate wireless
communication. The encoding/decoding complexity of these codes
is comparable to trellis codes employed in practice over Gaussian
channels. The codes constructed here provide the best tradeoff
between data rate, diversity advantage, and trellis complexity.
Simulation results are provided for 4 and 8 PSK signal sets
with data rates of 2 and 3 bits/symbol, demonstrating excellent
performance that is within 2–3 dB of the outage capacity for these
channels using only 64 state encoders.
Index Terms—Array processing, diversity, multiple transmit
antennas, space–time codes, wireless communications.
【目　录】:
I. INTRODUCTION
II. PERFORMANCE CRITERIA
III. CODE CONSTRUCTION
IV. CONCLUSIONS

Kevinmey

【文件名】:06626@52RD_Space-time block codes from orthogonal designs.rar
【格　式】:rar
【大　小】:239K
【简　介】:Abstract—We introduce space–time block coding, a new paradigm
for communication over Rayleigh fading channels using
multiple transmit antennas. Data is encoded using a space–time
block code and the encoded data is split into n streams which
are simultaneously transmitted using n transmit antennas. The
received signal at each receive antenna is a linear superposition
of the n transmitted signals perturbed by noise. Maximumlikelihood
decoding is achieved in a simple way through decoupling
of the signals transmitted from different antennas rather
than joint detection. This uses the orthogonal structure of the
space–time block code and gives a maximum-likelihood decoding
algorithm which is based only on linear processing at the receiver.
Space–time block codes are designed to achieve the maximum
diversity order for a given number of transmit and receive
antennas subject to the constraint of having a simple decoding
algorithm.
【目　录】:
I. INTRODUCTION
II. THE CHANNEL MODEL AND THE DIVERSITY CRITERION
III. ORTHOGONAL DESIGNS AS CODES FOR WIRELESS CHANNELS
IV. GENERALIZED REAL ORTHOGONAL DESIGNS
V. GENERALIZED COMPLEX ORTHOGONAL DESIGNS AS SPACE–TIME BLOCK CODES
VI. CONCLUSION

Kevinmey

【文件名】:06626@52RD_or wireless communications performance results.pdf.rar
【格　式】:rar
【大　小】:351K
【简　介】:空时编码三篇经典文章
【目　录】:无目录