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Non-orthogonal multiple access (NOMA) is widely viewed as a potential candidate for providing enhanced multiple access in future mobile networks by eliminating the orthogonal distribution of radio resources amongst the users. Nevertheless,…

信号处理 · 电气工程与系统科学 2024-12-03 Aditya Powari , Daniel K. C. So

In uplink non-orthogonal multiple access (NOMA) networks, the order of decoding at the base station (BS) depends on the received instantaneous signal powers (ISPs). Therefore, the signal-to-interference-plus-noise ratio (SINR) coverage…

信息论 · 计算机科学 2019-05-10 Mohammad Salehi , Ekram Hossain

When considering the future generation wireless networks, non-orthogonal multiple access (NOMA) represents a viable multiple access technique for improving the spectral efficiency. The basic performance of NOMA is often enhanced using…

Non-orthogonal multiple access (NOMA) is a powerful transmission technique that enhances the spectral efficiency of communication links, and is being investigated for 5G standards and beyond. A major drawback of NOMA is the need to apply…

信息论 · 计算机科学 2022-10-18 Abdelhamid Salem , Xiao Tong , Ang Li , Christos Masouros

A novel near-field transmission framework is proposed for dynamic metasurface antenna (DMA)-enabled non-orthogonal multiple access (NOMA) networks. The base station (BS) exploits the hybrid beamforming to communicate with multiple near…

信息论 · 计算机科学 2024-03-11 Zheng Zhang , Yuanwei Liu , Zhaolin Wang , Jian Chen , Dong In Kim

In this letter, a new power allocation scheme is proposed to improve the reliability of cooperative non-orthogonal multiple access (CO-NOMA). The strong user is allocated the maximum power, whereas the weak user is allocated the minimum…

信号处理 · 电气工程与系统科学 2020-11-26 Sana Riaz , Fahd Ahmed Khan , Sajid Saleem , Qasim Zeeshan Ahmed

Non-orthogonal multiple access (NOMA) is a potential enabler for the development of 5G and beyond wireless networks. By allowing multiple users to share the same time and frequency, NOMA can scale up the number of served users, increase the…

信息论 · 计算机科学 2017-04-14 Wonjae Shin , Mojtaba Vaezi , Byungju Lee , David J. Love , Jungwoo Lee , H. Vincent Poor

Both non-orthogonal multiple access (NOMA), which can serve multiple users simultaneously and on the same frequency, and cognitive radio (CR) can contribute to eliminating the spectrum scarcity problem. In this work, an uplink CR-based NOMA…

信息论 · 计算机科学 2023-03-01 Omer Faruk Akyol , Fethi Okta , Semiha Tedik Basaran

Optimal beamforming designs under imperfect successive interference cancellation (SIC) decoding for a symbiotic network of non-orthogonal multiple access (NOMA) primary users and a secondary ambient tag have been lacking. We address that…

信号处理 · 电气工程与系统科学 2023-11-29 Fatemeh Rezaei , Diluka Galappaththige , Chintha Tellambura , Sanjeewa Herath

In this paper we investigate the benefit of base station (BS) cooperation in the uplink of coordinated multi-point (CoMP) networks. Our figure of merit is the required BS density required to meet a chosen rate coverage. Our model assumes a…

信息论 · 计算机科学 2016-11-15 S. Alireza Banani , Raviraj Adve

This paper investigates the performance of network non-orthogonal multiple access (N-NOMA) in a downlink coordinated multi-point (CoMP) system. In the considered N-NOMA scheme, multiple base stations (BSs) cooperatively serve a CoMP user,…

信息论 · 计算机科学 2023-08-02 Yanshi Sun , Zhiguo Ding , Xuchu Dai , Momiao Zhou , Zhizhong Ding

It is well-known that the traditional transmit beamforming at a base station (BS) to manage interference in serving multiple users is effective only when the number of users is less than the number of transmit antennas at the BS.…

信息论 · 计算机科学 2017-08-29 Van-Dinh Nguyen , Hoang Duong Tuan , Trung Q. Duong , Oh-Soon Shin , H. Vincent Poor

We propose a data-aided transmit beamforming scheme for the multi-user multiple-input-single-output (MISO) downlink channel. While conventional beamforming schemes aim at the minimization of the transmit power subject to suppressing…

信息论 · 计算机科学 2023-07-19 C. Masouros , G. Zheng

Next-generation internet of things (IoT) applications need trillions of low-powered wireless mobile devices to connect with each other having ultra-reliability and low-latency. Non-orthogonal multiple access (NOMA) is a promising technology…

信号处理 · 电气工程与系统科学 2020-12-16 Kuntal Deka , Sanjeev Sharma

This paper investigates a multi-input single-output (MISO) wireless powered communication network (WPCN) under the protocol of harvest-then-transmit. The power station (PS) with reliable power supply can replenish the passive user nodes by…

信息论 · 计算机科学 2014-12-30 Qian Sun , Gang Zhu , Chao Shen , Xuan Li , Zhangdui Zhong

This paper proposes and optimizes a cooperative non-orthogonal multiple-access (Co-NOMA) scheme in the context of multicell visible light communications (VLC) networks, as a means to mitigate inter-cell interference in Co-NOMA-enabled…

Distributed antenna system (DAS) has been deployed for over a decade. DAS has advantages in capacity especially for the cell edge users, in both single-cell and multi-cell environments. In this paper, non-orthogonal multiple access (NOMA)…

信息论 · 计算机科学 2017-06-19 Dong-Jun Han , Minseok Choi , Jaekyun Moon

We consider wireless backhauling for a scenario where two small-cell base stations (SC-BSs) employ the same time and frequency resources for offloading their data to a common macro-cell base station (MC-BS). The two SC-BSs allocate a part…

信息论 · 计算机科学 2016-12-20 Vahid Jamali , Nikola Zlatanov , Robert Schober

Cellular uplink analysis has typically been undertaken by either a simple approach that lumps all interference into a single deterministic or random parameter in a Wyner-type model, or via complex system level simulations that often do not…

信息论 · 计算机科学 2016-11-17 Thomas D. Novlan , Harpreet S. Dhillon , Jeffrey G. Andrews

This paper considers networked sensing in cellular network, where multiple base stations (BSs) first compress their received echo signals from multiple targets and then forward the quantized signals to the central unit (CU) via…

信号处理 · 电气工程与系统科学 2024-09-09 Weifeng Zhu , Shuowen Zhang , Liang Liu
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