5G wireless communication systems: prospects and challenges [Guest Editorial]

Thompson, John; Ge, Xiaohu; Wu, Hsiao-Chun; Irmer, Ralf; Jiang, Hong; Fettweis, Gerhard; Alamouti, Siavash

doi:10.1109/mcom.2014.6736744

Cited by 228 publications

(91 citation statements)

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“…The new air interface is expected to be flexible and suitable for a broad range of frequencies [23]. Latency, reliability, speed, and interference control of the access stratum protocols need to be substantially improved to support the envisioned scenarios and other unforeseen performance requirements.…”

Section: Enabling Technologiesmentioning

confidence: 99%

A 5G Infrastructure for “Anything-as-a-Service”

A¹

2014

J Telecommun Syst Manage

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In this paper, we describe our vision of the advanced 5G infrastructure, a ubiquitous mobile ultra-broadband network supporting the Future Internet (FI). It is argued that 5G should not be simply seen as an evolution of current 4G networks, but, rather a revolution in the ICT field towards the "nervous system" of the Digital Society and Digital Economy. In fact, 5G will efficiently enable new ultra reliable, dependable, secure, privacy preserving, and delay critical services to everyone and everything, such as machines, vehicles, smart things, robots, etc. Adoption of new service models, such as "Full Immersive Experience", enriched by "Context Information", and "Anything as a Service" will create the conditions for the socio-economic sustainability of 5G infrastructures. In particular, "Anything as a Service" is a paradigm where devices, machines, smart things or robots will become "tools" to produce and consume applications, services and data, both for business and pleasure. This will dramatically contribute to the development of the Digital Economy centered on robots working alongside humans, thus freeing up people from many cognitive tasks and creating new jobs. As of today, for 5G many challenges are still to be addressed to meet the target performance indicators, especially, in terms of latency, reliability and spectrum usage. This paper gives a comprehensive analysis of said challenges, including recommendations on target network architectures and related enabling technologies. An exploitation scenario for Europe is presented and, eventually, a survey about main RT&D and innovation activities on 5G ongoing globally is provided.

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Section: Enabling Technologiesmentioning

confidence: 99%

A 5G Infrastructure for “Anything-as-a-Service”

A¹

2014

J Telecommun Syst Manage

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“…The massive multi-input multi-output (MIMO) antennas and the millimeter wave communication technologies have been widely known as two key technologies for the fifth generation (5G) wireless communication systems [1]- [6]. Compared with conventional MIMO antenna technology, massive MIMO can improve more than 10 times spectrum efficiency in wireless communication systems [7].…”

Section: Introductionmentioning

confidence: 99%

Energy Efficiency Optimization of 5G Radio Frequency Chain Systems

Thompson

et al. 2016

IEEE J. Select. Areas Commun.

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Abstract-With the massive multi-input multi-output (MIMO)antennas technology adopted for the fifth generation (5G) wireless communication systems, a large number of radio frequency (RF) chains have to be employed for RF circuits. However, a large number of RF chains not only increase the cost of RF circuits but also consume additional energy in 5G wireless communication systems. In this paper we investigate energy and cost efficiency optimization solutions for 5G wireless communication systems with a large number of antennas and RF chains. An energy efficiency optimization problem is formulated for 5G wireless communication systems using massive MIMO antennas and millimeter wave technology. Considering the nonconcave feature of the objective function, a suboptimal iterative algorithm, i.e., the energy efficient hybrid precoding (EEHP) algorithm is developed for maximizing the energy efficiency of 5G wireless communication systems. To reduce the cost of RF circuits, the energy efficient hybrid precoding with the minimum number of RF chains (EEHP-MRFC) algorithm is also proposed. . Compared with conventional MIMO antenna technology, massive MIMO can improve more than 10 times spectrum efficiency in wireless communication systems [7]. Moreover, the beamforming gain based on the massive MIMO antenna technology helps to overcome the path loss fading in millimeter wave channels. For MIMO communication systems with traditional radio frequency (RF) chains and baseband processing, one antenna corresponds to one RF chain [8], [9]. In this case, a large number of RF chains has to be employed for massive MIMO communication systems. These RF chains not only consume a large amount of energy in wireless transmission systems but also increase the cost of wireless communication systems [10]. Therefore, it is an important problem to find energy efficient solutions for 5G wireless communication systems with a large number of antennas and RF chains.To improve the performance of multiple antenna transmission systems, hybrid precoding technology combining digital

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“…Besides, 5G needs to support massive connectivity of users, due to the emergence of new traffic types and data services [2]. To satisfy these demands, some potential candidates have been proposed to address challenges of 5G, such as ultra dense network (UDN), massive multiple input multiple output (MIMO), device to device (D2D), NOMA, and so on.…”

Section: Introductionmentioning

confidence: 99%

RIePDMA and BP-IDD-IC detection

Zeng

Kong

Liu

et al. 2017

J Wireless Com Network

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Pattern division multiple access (PDMA) is a non-orthogonal multiple access (NOMA) scheme which is proposed to meet the demand of massive connection in the future 5G communications. In this paper, we build a random interleaver (RI) enhanced PDMA (RIePDMA) system by bringing the random interleaver into a PDMA system to further improve the overload of PDMA. Furthermore, we analyze several integrated detection and decoding algorithms with interference cancellation (IC) and propose the iterative detection and decoding based on belief propagation and interference cancellation (BP-IDD-IC). Simulation results show that the proposed RIePDMA system can achieve better block error rate (BLER) performance without increasing the complexity of the receiver. Compared with several other integrated detection and decoding algorithms, the proposed BP-IDD-IC algorithm can get better BLER performance with an acceptable complexity.

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5G wireless communication systems: prospects and challenges [Guest Editorial]

Cited by 228 publications

References 0 publications

A 5G Infrastructure for “Anything-as-a-Service”

A 5G Infrastructure for “Anything-as-a-Service”

Energy Efficiency Optimization of 5G Radio Frequency Chain Systems

RIePDMA and BP-IDD-IC detection

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