Results 31 to 40 of about 980,180 (287)
Overcoming self-interference in SM-OFDMA with ESINR and dynamic subcarrier allocation [PDF]
, 2009 For a single user with multiple receive antennas, co-antenna interference can be the dominant source of impairment in a Spatial Multiplex Orthogonal Frequency Division Multiple Access (SM-OFDMA) system, particularly when correlation exists between ...
Armour, SMD, McGeehan, JP, Nordin, R
core +2 more sources
Multiple Access Outerbounds and the Inseparability of Parallel Interference Channels [PDF]
IEEE GLOBECOM 2008 - 2008 IEEE Global Telecommunications Conference, 2008 It is known that the capacity of parallel (multi-carrier) Gaussian point-to-point, multiple access and broadcast channels can be achieved by separate encoding for each subchannel (carrier) subject to a power allocation across carriers. In this paper we show that such a separation does not apply to parallel Gaussian interference channels in general.
Viveck R. Cadambe, Syed Ali Jafar
openaire +2 more sources
A Multiuser Detection Algorithm in the Uplink SC-FDMA System for Green Communication Network
IEEE Access, 2016 The Single-carrier Frequency-Division Multiple Access (SC-FDMA) communication scheme is the key technique in green communications and networking for 5G for the uplink of SC-FDMA multiuser systems due to frequency differences introducing access ...
Peng Bao, Qingyang Guan, Mingxiang Guan
doaj +1 more source
An antenna switching based NOMA scheme for IEEE 802.15.4 concurrent transmission
, 2020 This paper introduces a Non-Orthogonal Multiple Access (NOMA) scheme to support concurrent transmission of multiple IEEE 802.15.4 packets. Unlike collision avoidance Multiple Access Control (MAC), concurrent transmission supports Concurrent-MAC (C-MAC ...
Aslam, Muhammad +3 more
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Link Scheduling Algorithm with Interference Prediction for Multiple Mobile WBANs
Sensors, 2017 As wireless body area networks (WBANs) become a key element in electronic healthcare (e-healthcare) systems, the coexistence of multiple mobile WBANs is becoming an issue.
Thien T. T. Le, Sangman Moh
doaj +1 more source
Coverage and density of a low power, low data rate, spread spectrum wireless sensor network for agricultural monitoring [PDF]
, 2007 A physical layer specification for a low power, low complexity, low data rate sensor network suitable for agricultural monitoring is investigated. Code division multiple access (CDMA) with high processing gain is used to facilitate transmission powers ...
Crockett, L.H., Pfann, E., Stewart, R.W.
core +1 more source
Partial Interference and Its Performance Impact on Wireless Multiple Access Networks
EURASIP Journal on Wireless Communications and Networking, 2010 To determine the capacity of wireless multiple access networks, the interference among the wireless links must be accurately modeled. In this paper, we formalize the notion of the partial interference phenomenon observed in many recent wireless ...
Ka-Hung Hui +2 more
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Cognition and Cooperation in Interfered Multiple Access Channels
Entropy, 2017 In this work, we investigate a three-user cognitive communication network where a primary two-user multiple access channel suffers interference from a secondary point-to-point channel, sharing the same medium. While the point-to-point channel transmitter—
Jonathan Shimonovich +2 more
doaj +1 more source
EURASIP Journal on Wireless Communications and Networking, 2022 In multiple users (MU) multiple input multiple output (MIMO) systems, the non-orthogonal multiple access (NOMA) method can provide multiple access. However, a spectrum efficiency of NOMA method is restricted because of remaining an interference signal of
Nguyen Thu Phuong +2 more
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D2D user and cellular user communication scheme based on NOMA
Dianzi Jishu Yingyong, 2023 LTE network adopts non orthogonal multiple access to enhance network capacity and D2D to improve spectral efficiency. Allowing D2D users to share the spectrum resources of cellular users using non orthogonal multiple access technology can alleviate the ...
Zhu Liyuan, Wang Bin, Wang Wennai
doaj +1 more source