scholarly journals Evaluation of 5G Modulation Candidates WCP-COQAM, GFDM-OQAM, and FBMC-OQAM in Low-Band Highly Dispersive Wireless Channels

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Aitor Lizeaga ◽  
Pedro M. Rodríguez ◽  
Iñaki Val ◽  
Mikel Mendicute
Keyword(s):  
Cognitive Radio ◽  
Wireless Communications ◽  
Mobile Communications ◽  
Spectral Efficiency ◽  
Wireless Channels ◽  
Multipath Channels ◽  
Low Latency ◽  
Power Spectral ◽  
Industrial Communications ◽  
Indoor Spaces

We analyse some of the candidates for modulations for 5G: FBMC-OQAM, GFDM-OQAM, and WCP-COQAM. Unlike most of the related bibliographies, which are oriented to mobile communications, our research is focused on 5G in cognitive radio based industrial wireless communications. According to the ultrareliability and low-latency requirements of industrial communications, we simulate the aforementioned modulations in low-band transmissions (carrier frequencies below 6 GHz and a bandwidth narrower than 100 MHz) through large indoor spaces and severe multipath channels that emulate industrial halls. Moreover, we give detailed information about WCP-COQAM and how the windowing affects the protection against multipath effect and reduces spectral efficiency compared to GFDM-OQAM. We also compare the aforementioned filtered multicarrier techniques and OFDM in terms of robustness against multipath channels, power spectral density, and spectral efficiency. Based on these results, we aim at providing an approximate idea about the suitability of 5G MCM candidates for industrial wireless communications based on CR.

scholarly journals IN SEARCH OF SUSTAINABLE BUSINESS MODELS FOR COGNITIVE RADIO EVOLUTION

2012 ◽  
Vol 18 (2) ◽  
pp. 230-247 ◽  
Author(s):  
Vladislav V. Fomin ◽  
Artūras Medeišis ◽  
Daiva Vitkutė-Adžgauskienė
Keyword(s):  
Cognitive Radio ◽  
Mobile Communications ◽  
Software Defined Radio ◽  
Business Models ◽  
Spectrum Access ◽  
New Paradigm ◽  
Sustainable Business ◽  
Radio Communications ◽  
Telecommunications Infrastructure ◽  
Radio Frequency Spectrum

In this paper we examine the emerging industry of Cognitive Radio/Software Defined Radio (CR/SDR), a sector which in some ways seconds the industry structure of the cellular mobile communications, while bearing distinctive characteristics. Any radio telecommunications infrastructure depends on scarce resources – radio frequency spectrum – that require policy decisions for allocation to specific countries and services. CR/SDR may constitute a new paradigm in radio communications as it may completely or partially eliminate the role of the regulator in minutiae of spectrum access authorization. In this paper, we review scarce literature on CR/SDR to analyze the relationships between political, technological and economic factors in order to identify drivers and barriers to the emergence of new techno-economic paradigm of CR/SDR. Our discussion of business opportunities for CR/SDR includes analysis of applicable spectrum access policies and identification of those of them, which would be most fertile for the development of future CR/SDR business.

Bit-interleaved polar-coded OFDM for low-latency M2M wireless communications

2017 ◽  
Author(s):  
Toshiaki Koike-Akino ◽  
Ye Wang ◽  
Stark C. Draper ◽  
Kenya Sugihara ◽  
Wataru Matsumoto
Keyword(s):  
Wireless Communications ◽  
Low Latency ◽  
Coded Ofdm
Sign in / Sign up

Export Citation Format

Share Document