Results 41 to 50 of about 23,596 (197)
Differential Interference Suppression for SDMA-OFDM Based on Joint Multiple-Symbol Filtering and Detection [PDF]
, 2011 This paper presents a multiple-symbol differential spatial division multiple access (MS-DSDMA) OFDM system conceived for low-complexity and high-bandwidth-efficiency applications operating in time-varying fading channels, where no channel estimation is ...
Wang, Li +3 more
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Analysis and Mitigation of ICI Due to Gain Adjustment in OFDM Systems
IEEE Access, 2019 Automatic gain control (AGC) is widely adopted in orthogonal frequency division multiplexing (OFDM) systems to compensate the significant variation of the received signal.
Hao Wu, Jun Li
doaj +1 more source
The Effects of Inter-Symbol Interference in Dynamic Element Matching DACs
IEEE Transactions on Circuits and Systems I: Regular Papers, 2017 Dynamic element matching (DEM) is often applied to multi-bit DACs to avoid nonlinear distortion that would otherwise result from inevitable mismatches among nominally identical circuit elements. Unfortunately, for such a DEM DAC to fully achieve this objective its constituent 1-bit DACs must be free of inter-symbol interference (ISI), i.e., the error ...
Jason Remple, Ian Galton
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An identification technique for the co-frequency mixed communication signals based on cumulants
EURASIP Journal on Advances in Signal Processing, 2018 Identification of the co-frequency interference is a common problem in wireless digital communication systems. The high-order statistics (HOS) feature based on cumulants is a widely adopted solution. However, prior knowledge of the timings and the symbol
Chaowei Duan, Yafeng Zhan, Hao Liang
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IEEE Access, 2022 This study investigates the system capacity of dual-polarized orbital angular momentum (OAM) multiplexing that employs single-carrier with frequency domain equalization (FDE) in urban street canyon environments.
Hirofumi Suganuma +3 more
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Privacy via Modulation Rotation and Inter-Symbol Interference
CoRRTwo physical-layer mechanisms for achieving user-side differential privacy in communication systems are proposed. Focusing on binary phase-shift keying (BPSK) modulation, differential privacy (DP) is first studied under a deterministic phase rotation applied on the BPSK modulation at the transmitter, while the receiver is assumed to be unaware of the ...
Morteza Varasteh, Pegah Sharifi
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STUDY AND ANALYSIS OF INTRA-CELL INTERFERENCE AND INTER-CELL INTERFERENCE FOR 5G NETWORK
Journal of Engineering and Sustainable Development, 2020 In mobile networks, such as fifth generation (5G), the appealing characteristics of the small cells, like easy deployment, affordable, and low power usage, have led to improvement of Heterogeneous Network (HetNet) technique.
Najim Abdallah Jazea +2 more
doaj +3 more sources
MATEC Web of Conferences, 2018 Orthogonal frequency division multiplexing (OFDM) is widely used in wired or wireless transmission systems. In the structure of OFDM, a cycle prefix (CP) has been exploited to avoid the effects of inter-symbol interference (ISI) and inter-carrier ...
Nguyen Viet-Hung +2 more
doaj +1 more source
IEEE Photonics Journal, 2019 In this paper, a new precoder for a coherent optical filter bank multicarrier with offset quadrature amplitude modulation (FBMC/OQAM) system is proposed.
Khaled Abdulaziz Alaghbari +2 more
doaj +1 more source
, 2012 Conventional single-relay aided two-phase cooperative networks employing coherent detection algorithms incur a significant 50% throughput loss. Furthermore, it is unrealistic to expect that in addition to the task of relaying, the relay-station would ...
Li, Li +5 more
core +1 more source