Results 31 to 40 of about 31,082 (236)

Kalman interpolation filter for channel estimation of LTE downlink in high-mobility environments [PDF]

, 2012
The estimation of fast-fading LTE downlink channels in high-speed applications of LTE advanced is investigated in this article. In order to adequately track the fast time-varying channel response, an adaptive channel estimation and interpolation ...
Dai, Xuewu, Zhang, W, Xuewu Dai, Dai, X, Yang, Y, Mitchell, JE, Yang, Yang, John E Mitchell, Xu, Jing, Jing Xu, Mitchell, John, Xu, J, Zhang, Wuxiong, Yang Yang, Wuxiong Zhang   +14 more
core   +1 more source

Bidirectional resource scheduling algorithm for advanced long term evolution system

Engineering Reports, 2020
The 5G long term evolution‐advanced (LTE‐A) system aims to offer unprecedent data rates, user experience, and minimal latency amongst the end users with the introduction of carrier aggregation (CA) technology.
Ravi Gatti, Shiva Shankar
doaj   +1 more source

Physical-Layer Security in Power-Domain NOMA Based on Different Chaotic Maps

Entropy, 2023
Nonorthogonal multiple access (NOMA) is a relevant technology for realizing the primary goals of next-generation wireless networks, such as high connectivity and stability.
Mariam Abu Al-Atta, Karim A. Said, Mohamed A. Mohamed, Walid Raslan   +3 more
doaj   +1 more source

Serial Search Based Code Acquisition in the Cooperative MIMO Aided DS-CDMA Downlink [PDF]

, 2008
In this paper we investigate a realistic code acquisition assisted cooperative Non-Coherent (NC) Multiple-Input Multiple-Output (MIMO) DS-CDMA downlink scenario, when communicating over uncorrelated single-path and multi-path Rayleigh channels.
Won, Seung, Lee, K., S. Won, L. Hanzo, K. Lee, Hanzo, L.   +5 more
core   +1 more source

Energy-Efficient Resource Allocation for Underlay Spectrum Sharing in Cell-Free Massive MIMO

IEEE Access
Cell-free massive multiple-input-multiple-output (CF-mMIMO) networks incorporate a cell-free architecture with distributed antennas in a geographical area, and aim to deliver high data rates and support large numbers of users.
Zakir Hussain Shaik, Rimalapudi Sarvendranath, Erik G. Larsson   +2 more
doaj   +1 more source

Optimal user selection and power allocation for revenue maximization in non‐orthogonal multiple access systems

ETRI Journal, 2019
A novel algorithm for joint user selection and optimal power allocation for Stackelberg game‐based revenue maximization in a downlink non‐orthogonal multiple access (NOMA) network is proposed in this study.
Sindhu Pazhayakandathil, Deepak Kayiparambil Sukumaran, Abdul Hameed Koodamannu   +2 more
doaj   +1 more source

Desain dan Implementasi Duplekser dengan Metoda Pseudo-Interdigital untuk Uplink dan Downlink LTE

Jurnal Elektronika dan Telekomunikasi, 2016
Duplekser merupakan perangkat yang dapat mengisolasi receiver dari transmitter saat keduanya saling berbagi antena yang sama, digunakan agar komunikasi bisa berjalan secara full duplex. Ada dua metode transmisi duplex yaitu frequency division duplex (FDD)
Enceng Sulaeman, Yaya Sulaeman, Asep Yudi Hercuadi   +2 more
doaj   +1 more source

Transmitter-preprocessing-assisted cooperative downlink transmission in DS-CDMA systems experiencing propagation path loss and Nakagami-m fading

, 2009
In this contribution we propose and investigate a relay diversity transmission scheme for the direct-sequence code-division multiple-access (DS-CDMA) downlink, where each (destination) mobile terminal (MT) is aided by a cluster of relays for achieving ...
Yang, Lie-Liang, Fang, Wei, Hanzo, Lajos
core   +1 more source

Multi-UAV Assisted Multi-Tier Millimeter-Wave Cellular Networks for Hotspots With 2-Tier and 4-Tier Network Association

IEEE Access, 2020
The evolution of the fifth-generation (5G)/ beyond 5G (B5G) mobile communication networks greatly depends on the seamless integration of terrestrial and sky networks over advanced multi-tier heterogeneous network (HetNet) infrastructure.
Pengshan Ji, Xiangdong Jia, Yi Lu, Haixia Hu, Yuhua Ouyang   +4 more
doaj   +1 more source

Uplink-Downlink Duality for Integer-Forcing [PDF]

IEEE Transactions on Information Theory, 2014
IEEE Trans. on Information Theory, vol. 64, no.
Wenbo He, Bobak Nazer, Shlomo Shamai Shitz   +2 more
openaire   +3 more sources