Browse Conferences
Spatial array processing in a 3D multiuser network
The performances of spatial array processing algorithms along with three-dimensional (3D) antenna arrays are studied in this paper. Optimal linear beamforming is compared to codebook based processing. The elevation domain is further utilize...
I/Q imbalance calibration for higher self-interference cancellation levels in Full-Duplex wireless transceivers
This paper investigates a Full-Duplex transceiver using an active cancellation technique where an additional transmit chain is employed to create the self-interference cancellation signal. Both transmitters and also the receiver are impaire...
Analysis of the effect of nonlinear low noise amplifier with memory for wideband spectrum sensing
In wideband sensing receivers, especially in low-cost mass-product devices, the sensing operation is usually done in a range where the RF front-end components, such as the LNAs exhibit a nonlinear behavior. Consequently, intermodulation (IM...
Assessment of channel interference for Licensed Shared Access (LSA) in the 2.3–2.4 GHz band
This text simulates sharing conditions between incumbent spectrum user and mobile network operator (MNO) at the frequency band 2.3 - 2.4 GHz. The probability of interference between radio systems helps to determine appropriate frequency pla...
Licensed Shared Access in distributed antenna systems enabling network virtualization
A distributed antenna system (DAS) architecture is considered to be a key enabler for further Network Virtualization where different network configurations are created as needed by a centralized decision making unit that is typically integr...
Massive MIMO and waveform design for 5th generation wireless communication systems
This article reviews existing related work and identifies the main challenges in the key 5G area at the intersection of waveform design and large-scale multiple antenna systems, also known as Massive MIMO. The property of self-equalization ...
Performance analysis of block and comb type channel estimation for massive MIMO systems
For pilot sequence based multiple input multiple output (MIMO) channel estimation, the arrangements of pilot symbols, such as the block or comb type arrangement, is known to play an important role. In this paper we compare the performance o...
On the flexible 5G dense deployment air interface for mobile broadband
In this paper we contemplate 5G frame structure for dense deployment. We discuss harmonized OFDM concept, in which the cyclic prefix length and subcarrier spacing are functions of carrier frequency while FFT size and base clock remain const...
Coordinated multi-antenna processing for cellular underlay device-to-device communication
We propose linear coordinated transmit-receive beamforming methods for spatial underlay direct device-to-device (D2D) communication in cellular networks where the user terminals (UTs) employ multiple antenna elements. For a D2D terminal pai...
Effect of residual of self-interference in performance of full-duplex D2D communication
This paper studies possibility of using full-duplex (FD) radios in underlay device-to-device communication (D2D) in cellular networks. We consider a cellular system with one D2D pair and one cellular user. Cellular user is sharing the radio...