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Unveiling the Importance of SIC in NOMA Systems: Part II - New Results and Future Directions (Invited Paper)
IEEE Communications Letters ( IF 3.7 ) Pub Date : 2020-11-01 , DOI: 10.1109/lcomm.2020.3012601
Zhiguo Ding , Robert Schober , H. Vincent Poor

In most existing works on non-orthogonal multiple access (NOMA), the decoding order of successive interference cancellation (SIC) is prefixed and based on either the users’ channel conditions or their quality of service (QoS) requirements. A recent work on NOMA assisted semi-grant-free transmission showed that the use of a more sophisticated hybrid SIC scheme can yield significant performance improvements. This letter illustrates how the concept of hybrid SIC can be generalized and applied to different NOMA applications. We first use NOMA assisted mobile edge computing (MEC) as an example to illustrate the benefits of hybrid SIC, where new results for offloading energy minimization are presented. Then, future directions for generalizing hybrid SIC with adaptive decoding order selection as well as its promising applications are discussed.

中文翻译:

揭示 SIC 在 NOMA 系统中的重要性:第二部分 - 新结果和未来方向(特邀论文)

在大多数关于非正交多址 (NOMA) 的现有工作中,连续干扰消除 (SIC) 的解码顺序是有前缀的,并且基于用户的信道条件或其服务质量 (QoS) 要求。最近一项关于 NOMA 辅助半无授权传输的工作表明,使用更复杂的混合 SIC 方案可以显着提高性能。这封信说明了如何将混合 SIC 的概念推广并应用于不同的 NOMA 应用程序。我们首先使用 NOMA 辅助移动边缘计算 (MEC) 作为示例来说明混合 SIC 的好处,其中介绍了卸载能量最小化的新结果。然后,讨论了使用自适应解码顺序选择推广混合 SIC 的未来方向及其有前途的应用。
更新日期:2020-11-01
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