Cooperative Non-Orthogonal Layered Multicast Multiple Access for Heterogeneous Networks
Cooperative Non-Orthogonal Layered Multicast Multiple Access for Heterogeneous Networks
复制标题
异构网络的协作非正交分层组播多址接入
DOI：
10.1109/tcomm.2018.2874239
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发表时间：
2019-02
影响因子：
8.3
通讯作者：
Jiang Hai
中科院分区：
文献类型：
--
作者：
Yang Long;Ni Qiang;Lv Lu;Chen Jian;Xue Xuan;Zhang Hailin;Jiang Hai
提出了一种异构网络中协作非正交分层多播多址接入的新设计，将信息编码为高优先级（HP）和低优先级（LP）消息。两种类型的多播用户共存于网络中：1）常规用户（罗斯），其位于远离基站（BS）并且期望仅解码HP消息（由于弱信道），以及2）高级用户（AU），其位于靠近BS并且期望解码HP和LP消息两者。为了提高分层多播的可靠性，我们认为，成功的AU（那些AU谁成功解码的HP和LP消息）作为潜在的中继，以协助其他AU/罗斯。基于这一思想，针对不同的信道信息可用性情况，提出了两种新的协作策略。对于每一种策略，我们推导出封闭形式的精确中断概率的AU和罗斯，然后进一步分析其多样性的顺序。此外，考虑到分层多播是中断约束，我们从理论上评估了这两种策略的能量消耗，并证明了它们的节能增益比直接非正交多址分层多播。最后，我们的理论分析是由数值结果验证，所提出的策略的优点也被证明。
This paper proposes a novel design of cooperative non-orthogonal layered multicast multiple access in a heterogeneous network, where the information is encoded into the messages of high priority (HP) and low priority (LP). Two types of multicast users coexist in the network: 1) regular users (RUs), which are located far away from the base station (BS) and expect to decode only the HP message (due to the weak channels), and 2) advanced users (AUs), which are located close to the BS and expect to decode both HP and LP messages. To improve the reliability of layered multicast, we consider that the successful AUs (those AUs who successfully decode the HP and LP messages) serve as potential relays to assist other AUs/RUs. Based on this idea, two novel cooperation strategies are proposed for different cases of channel information availability. For each proposed strategy, we derive closed-form exact outage probabilities of AUs and RUs and then further analyze their diversity orders. Moreover, considering that the layered multicast is outage-constrained, we theoretically evaluate the energy consumption of both strategies and demonstrate their energy saving gains over the direct non-orthogonal multiple access for layered multicast. Finally, our theoretical analysis is verified by numerical results, and the advantages of the proposed strategies are also demonstrated.
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DOI：
10.1109/tcsvt.2005.844454
发表时间：
2005-04
影响因子：
8.4
作者：
Qian Zhang;Q. Guo;Q. Ni;Wenwu Zhu;Ya-Qin Zhang
通讯作者：
Qian Zhang;Q. Guo;Q. Ni;Wenwu Zhu;Ya-Qin Zhang
基于 NOMA 的协作中继系统在莱斯衰落信道上的性能研究
影响因子：
6.8
作者：
Jiao, Ruicheng;Dai, Linglong;Hao, Mo
通讯作者：
Hao, Mo
影响因子：
2.5
作者：
Chun-Hung Liu;J. Andrews
通讯作者：
Chun-Hung Liu;J. Andrews
影响因子：
16.4
作者：
PATEL, P;HOLTZMAN, J
通讯作者：
HOLTZMAN, J
影响因子：
11.2
作者：
Montalban, Jon;Scopelliti, Pasquale;Araniti, Giuseppe
通讯作者：
Araniti, Giuseppe