Results 31 to 40 of about 16,146,716 (284)
Cache-Aided Non-Orthogonal Multiple Access [PDF]
2018 IEEE International Conference on Communications (ICC), 2018 In this paper, we propose a novel joint caching and non-orthogonal multiple access (NOMA) scheme to facilitate advanced downlink transmission for next generation cellular networks. In addition to reaping the conventional advantages of caching and NOMA transmission, the proposed cache-aided NOMA scheme also exploits cached data for interference ...
Lin Xiang 0001 +5 more
openaire +5 more sources
Uplink Non-Orthogonal Multiple Access With Golden Codeword Constellation
IEEE Access, 2021 Non-orthogonal multiple access (NOMA) is a technique to improve spectral efficiency. In uplink NOMA (UL-NOMA) systems, mobile multiusers are globally synchronized to share the same time and frequency resources, and transmit their own independent symbols ...
Hongjun Xu, Narushan Pillay
doaj +1 more source
Non-Orthogonal Multiple Access Assisted Multi-Region Geocast
IEEE Access, 2018 This paper proposes a novel location-based multi-group multicast framework, which is termed non-orthogonal multiple access (NOMA)-assisted multi-region geocast.
Yi Zhang +3 more
doaj +1 more source
Cooperative non-orthogonal multiple access with physical layer network coding [PDF]
, 2019 Physical layer network coding (PNC) has been proposed for information exchange between a pair of users assisted by a relay. However, the spectral efficiency of PNC reduces when the number of user pairs increases due to the requirement of orthogonal ...
Chee, Yen Leow, Chun, Yeen Ho
core +1 more source
Cooperative Non-Orthogonal Multiple Access with Energy Harvesting
Information, 2017 In this paper, we analyze the outage probability of an amplify-and-forward (AF) cooperative non-orthogonal multiple access (NOMA) model in multi-relay multiuser networks.
Weidong Guo, Yunfeng Wang
doaj +1 more source
Journal of Engineering and Sustainable Development, 2023 Non-Orthogonal Multiple Access (NOMA) is a promising technology that can significantly improve the performance of wireless communication systems, especially in applications with a high number of users and limited spectral resources. NOMA enables simultaneous transmission and reception of multiple signals at the same time and frequency resources.
Sarab k. mahmood +2 more
openaire +1 more source
A Thorough Review of Prospective Technologies for 5G/Beyond 5G Wireless Networks
Engineered ScienceRecently, wireless communication systems have relied on the orthogonal multiple access (OMA) principle to distribute radio resources to users through orthogonal access.
Kiran Kumar Godugu +4 more
doaj +1 more source
Cooperative Non-Orthogonal Multiple Access for Future Wireless Communications [PDF]
EAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2018 There is a huge demand for increased connectivity and reliability of devices in the fifth generation and beyond of wireless communications so as to ensure massive connectivity and high spectral efficiency.
Sunyoung Lee
doaj +1 more source
Optimizing Non-Orthogonal Multiple Access in Random Access Networks [PDF]
2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring), 2020 Non-orthogonal multiple access (NOMA) has been considered as a promising solution for improving the spectrum efficiency of next-generation wireless networks. In this paper, the performance of a p-persistent slotted ALOHA system in support of NOMA transmissions is investigated.
Ziru Chen +5 more
openaire +3 more sources
Optimizing sum rates in IoT networks: A novel IRS-NOMA cooperative system
ICT ExpressIntelligent Reflecting Surfaces (IRS) offer a promising solution for enhancing sum rates in wireless networks by dynamically adjusting signal reflections to optimize propagation paths.
Mukkara Prasanna Kumar +6 more
doaj +1 more source