Multiple base station broadcast system and method
A broadcasting system and multi-base station technology, applied in the field of wireless broadcasting communication, can solve the problems of not being able to overcome the influence of multipath effect and increase the cost of broadcasting system, and achieve the purpose of reducing the influence of multipath effect, reducing bit error rate, and high frequency spectrum The effect of utilization
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[0048] The present invention will be described in detail below in conjunction with the drawings.
[0049] Space-time coding is to encode data in the two-dimensional direction of the space domain and time domain. There are roughly three ways of space-time coding: Space Time Trellis Codes (STTC); Space Time Block Codes (Space Time Block Codes, STBC); Layered Space Time Codes (LSTC).
[0050] (1) Space-time trellis code (STTC): The space-time trellis code was first proposed by V. Tarokh et al. In this space-time coding system, the Viterbi decoding algorithm is used for decoding at the receiving end. The code of the space-time trellis code design can provide the maximum coding gain and diversity gain without losing bandwidth efficiency. The maximum diversity gain is equal to the number of transmitting antennas.
[0051] (2) Space-time block code (STBC): Although the space-time trellis code can obtain great coding gain and diversity gain, due to the use of Viterbi decoding at the receiv...
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