云存储是磁盘、高性能磁盘或Tier - 1磁盘和重复数据删除的代名词。抱有这种想法的人很多，并还达到了一个惊人的数量。
A surprisingly high number of people believe that Cloud Storage is synonymous with disk, primarily performance disk, or Tier-1 disk, and deduplication.
更好的方法是创建一个缓存策略，这样可以改善系统性能并最大限度降低重复数据请求对源系统造成的负面影响。
Instead, create a caching strategy to both improve system performance and minimize any negative impact on the performance of source systems caused by repeated requests for data.
针对分层空时编码技术缺少编码增益的问题，提出了将复数旋转码与分层空时编码技术相结合来提高系统的性能。
It presents a new scheme of combining complex-rotary codes and layered space-time code to improve the performance of systems based on the lack of encoding plus of layered space-time code.
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