A Survey of the Challenges, Opportunities and Use of Multiple Antennas in Current and Future 5G Small Cell Base Stations
Citations
642 citations
Cites background from "A Survey of the Challenges, Opportu..."
...For wireless network operators, the ever-increasing traffic demand can be fulfilled by deploying energy-efficient small cells in a dense network or using multiple antennas at the BS to increase spectrum efficiency [3]....
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505 citations
Cites background from "A Survey of the Challenges, Opportu..."
...The paper [66] reviews state-of-the-art literatures related to the applications and challenges associated with using multiple antennas in SBSs....
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92 citations
Cites background from "A Survey of the Challenges, Opportu..."
...• Benefits of Deploying Small Cells: These benefits are summarised below: (i) Improved coverage: The deployment of small cells in outdoor, or indoor environments would cover the coverage holes of macrocells due to the close proximity of the transmitters (small cells) and the receivers (SUEs) [6], [14], [18], [89]–[91]....
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...The uplink co-tier interference is caused by surrounding, co-located SUEs creating interference to nearby SBSs while the downlink co-tier interference is caused by the SBS transmission interfering with neighbouring SUEs [170]....
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66 citations
Cites background from "A Survey of the Challenges, Opportu..."
...2738065 widely agreed [3] that 5G base station antennas will have to...
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...Active electronically scanned arrays (AESAs) [6], [7] are a promising technology to address a 5G base station antenna design [3], [8]–[12]....
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...THE FUTURE generation of mobile wireless technologies, commonly labeled as “5G,” is expected to deliver multigigabit-per-second data rates while minimizing costs, connection latencies, and power consumption [1]–[3]....
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..., impedance matching, isolation from surrounding elements, polarization ellipticity, gain, and beamwidth) must be fit [3], [11], [13]....
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...3Although 5G standards have not yet been officially published, a set of frequency bands have already been released [27], and guidelines regarding the envisaged performance and indicators to be optimized for 3D beamforming, active antenna, and massive MIMO systems have already been discussed [3], [11], [13], [28]....
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62 citations
References
13,706 citations
"A Survey of the Challenges, Opportu..." refers background in this paper
...Perhaps the most simplest of these, and therefore applicable for a SBS because of its low complexity, is the Alamouti space time code scheme [22]....
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...High correlation between elements will lead to poorer performance for systems employing antenna diversity schemes such as receive diversity and transmit diversity through space time transmit-diversity (STTD) Alamouti codes [22]....
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7,139 citations
"A Survey of the Challenges, Opportu..." refers background in this paper
...Recent most vision papers on 5G also point out small cells as the key technology to achieve 5G requirements [1], [2]....
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...There is also an increasing pressure to use advanced antenna techniques, to maximize spectral efficiency (SE), to cope with the relentless demand for increased data rates [1], [9]....
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...5G) to increase the network capacity and to provide required data rates [1]....
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...It is well recognized that a key challenge in the adoption of HetNets is cross tier interference between the small cell and macrocell network [1], [40], [43] particularly when the small cell networks share the same frequency band as the surrounding macrocell network....
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4,122 citations
"A Survey of the Challenges, Opportu..." refers background in this paper
...Beamforming at the SBS can be provided on both uplink [37] and downlink [38]....
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3,298 citations
"A Survey of the Challenges, Opportu..." refers background in this paper
...FBSs are typically installed impromptu in the residential domain or small office/home Office (SOHO) and provide wireless cellular access to a closed or open group of subscribers as configured by the subscriber and/or the service provider [5]....
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...They are seen as an alternative to traditional MBSs for increasing coverage, quality of service (QoS), capacity and energy efficiency (EE) [5], [6]....
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2,220 citations
"A Survey of the Challenges, Opportu..." refers background in this paper
...In addition, as the sampling rate of such ADCs increases so does the inaccuracy of the conversion due to aperture jitter [68]....
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