Results 121 to 130 of about 4,925 (231)

Fast Frequency-Hopping Dynamic Multiple-Access for Cognitive Radios: Detection and Performance

, 2010
This paper proposes a fast frequency-hopping $M$-ary frequency-shift keying dynamic multiple-access (FFH/MFSK DMA) scheme for application in cognitive radios (CRs).
Zhang, Shuo, Yang, Lie-Liang, Zhang, Youguang   +2 more
core  

Successive Interference Cancellation in Clipped and Product Combining aided FFH Multi-User Systems

, 2006
—In this contribution, we propose two successive interference cancellation (SIC) schemes for a fast frequency hopping (FFH) multiple access (MA) system using M-ary frequency shift keying (MFSK) and invoking multi-user detection (MUD). One of the proposed
Ahmed, S., Yang, L-L., Hanzo, L.
core  

Graph-guided adaptive companding for PAPR reduction in power-domain NOMA systems. [PDF]

PLoS One
Kumar A, Masud M, Alohali M, Pradhan PC, Nanthaamornphong A.   +4 more
europepmc   +1 more source

A joint-channel diagonalization for multiuser MIMO antenna systems

, 2003
In this paper, we address the problem of improving the performance of multiuser space-division multiplexing (SDM) systems where multiple independent signal streams can be transmitted in the same frequency and time slot.
Wong, K-K., Murch, R.D., Letaief, K.B.
core  

Achieving Enhanced Spectral Efficiency for Constant Envelope Transmission in CP-OFDMA Framework. [PDF]

Sensors (Basel)
Zhu Z, Zhu Y, Xu X, Wang W, Chai L, Zheng Y.   +5 more
europepmc   +1 more source

Residual-aided CSI-free end-to-end learning for multiuser MIMO. [PDF]

PLoS One
Affum EA, Futa O, Oppong MA, Biney DO.
europepmc   +1 more source

Downlink MBER transmit beamforming design based on uplink MBER receive beamforming for rank-deficient TDD-SDMA systems

, 2010
The downlink minimum bit error rate (MBER) transmit beamforming is directly designed based on the uplink MBER receive beamforming solution for time division duplex (TDD) space-division multiple-access (SDMA) induced multiple-input multiple-output (MIMO ...
Yang, Lie-Liang, Chen, Sheng
core  

Multi-user hybrid precoding design based on QR decomposition and beam gain alignment

Dianxin kexue
Millimeterwave massive MIMO systems based on lens antenna arrays can effectively reduce the number of required RF chains without loss of performance.
ZHANG Tingting, CAO Haiyan, LI Bin, JI Yangrui, LING Haikun, XU Fangmin   +5 more
doaj  

Experimental Efficient Source-Independent Quantum Conference Key Agreement. [PDF]

Research (Wash D C)
Hua WJ, Xiao YR, Bao Y, Yin HL, Chen ZB.
europepmc   +1 more source

Interference Suppression via Joint Interference Alignment and Power Allocation in Integrated Communication and Navigation Systems. [PDF]

Sensors (Basel)
Wang X, He T, Ren X, Jing X.
europepmc   +1 more source