Zobrazeno 1 - 10
of 91
pro vyhledávání: '"Zetterberg Per"'
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2009, Iss 1, p 368752 (2009)
Experimental results on the well-known cooperating relaying schemes, amplify-and-forward (AF), detect-and-forward (DF), cooperative maximum ratio combining (CMRC), and distributed space-time coding (DSTC), are presented in this paper. A novel relayin
Externí odkaz:
https://doaj.org/article/b48e61c7d1f44c879f407241fd2775c8
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2007, Iss 1, p 025757 (2007)
The inter- and intrasite correlation properties of shadow fading and power-weighted angle spread at both the mobile station and the base station are studied utilizing narrowband multisite MIMO measurements in the 1800 MHz band. The influence of the d
Externí odkaz:
https://doaj.org/article/644a787e58264c21a685b7808460be22
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2007, Iss 1, p 028073 (2007)
This paper proposes several configurations for multiple base stations in indoor MIMO systems and compares their performance. The results are based on channel measurements realized with a MIMO testbed. The receiver was moved along several routes and f
Externí odkaz:
https://doaj.org/article/014057bd6bb54fe68773c0599a318a54
Publikováno v:
EURASIP Journal on Advances in Signal Processing, Vol 2006, Iss 1, p 078349 (2006)
Multi-antenna systems can provide improvements in wireless systems increasing spectral efficiency, reliability, range, and system capacity. Herein we show how some of the potentials of MIMO systems can be realized on a simple radio hardware platform
Externí odkaz:
https://doaj.org/article/702e8af7b32a4f659cb0d50221112039
Autor:
Hunukumbure, Mythri, Luo, Jian, Castaneda, Mario, DErrico, Raffaele, Zetterberg, Per, Zaidi, Ali A., Vihriala, Jaakko, Giustiniano, Domenico
The mm-wave spectrum will be of significant importance to 5G mobile systems. There are multiple challenges in designing transceiver architectures and air interfaces in this spectrum. This paper is an attempt to explain some of these challenges and th
Externí odkaz:
http://arxiv.org/abs/1803.05661
Autor:
Zou, Yaning, Zetterberg, Per, Gustavsson, Ulf, Svensson, Tommy, Zaidi, Ali, Kadur, Tobias, Rave, Wolfgang, Fettweis, Gerhard
In this paper, we study the joint impact of three major RF im-pairments, namely, oscillator phase noise, power amplifier non-linearity and I/Q imbalance on the performance of a mm-wave communication link based on OFDM modulation. General im-pairment
Externí odkaz:
http://arxiv.org/abs/1705.04944
This paper proposes a novel approach to phase-noise compensation. The basic idea is to approximate the phase-noise statistics by a finite number of realizations, i.e., a phase-noise codebook. The receiver then uses an augmented received signal model,
Externí odkaz:
http://arxiv.org/abs/1504.03240
Autor:
Moghadam, Nima Najari, Farhadi, Hamed, Zetterberg, Per, Khormuji, Majid Nasiri, Skoglund, Mikael
Data traffic over wireless communication networks has experienced a tremendous growth in the last decade, and it is predicted to exponentially increase in the next decades. Enabling future wireless networks to fulfill this expectation is a challengin
Externí odkaz:
http://arxiv.org/abs/1411.2529
Autor:
Zetterberg, Per
In this work we investigate the network MIMO techniques of interference alignment (IA) and fully adaptive joint transmission coordinated multipoint (CoMP) in an indoor very small cell environment. Our focus is on the overheads in a system with quanti
Externí odkaz:
http://arxiv.org/abs/1401.3098
Autor:
Zetterberg, Per
We have implemented interference alignment (IA) and joint transmission coordinated multipoint (CoMP) on a wireless testbed using the feedback compression scheme of the new 802.11ac standard. The performance as a function of the frequency domain granu
Externí odkaz:
http://arxiv.org/abs/1311.1013