空時(shí)分組編碼用于提高系統(tǒng)容量的研究
Study on Using Space-Time Block Coding to Improve System Capacity
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摘要: 該文在簡(jiǎn)單介紹空時(shí)分組編碼的基礎(chǔ)上，著重研究了對(duì)共道用戶產(chǎn)生的干擾進(jìn)行抵消抑制的技術(shù)。采用干擾抵消技術(shù)可以充分利用干擾信號(hào)的相關(guān)性進(jìn)行有效的抵消處理，從增加共道用戶的角度提高了系統(tǒng)的容量。并且文中提出了一種利用不同調(diào)制方式性能的不同，對(duì)共道用戶進(jìn)行分步解碼來削弱共道干擾的空時(shí)分組編碼傳輸系統(tǒng)策略。這種方法能夠進(jìn)一步提高系統(tǒng)的性能，尤其是增大了通信系統(tǒng)的容量。
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關(guān)鍵詞:
- 系統(tǒng)容量; 空時(shí)編碼; 抗干擾技術(shù)
Abstract: This paper focuses on the anti-interference technique to restrain the interfer-ence of co-channel users while simply introducing the concept of space-time block coding. Anti-interference technique uses the relationship among signals to remove the interference, which can enhance the capacity of communication system by introducing co-channel users. Moreover, the paper submits a strategy to eliminate the effect of co-channel interference by decoding signals by stages while using different performance of various modulation tech-niques. The system performance can get more enhancements by using this strategy, which is very important for enlarging the capacity of system. -
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