scholarly journals In-Band Full-Duplex Relay-Assisted Millimeter-Wave System Design

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 2291-2304 ◽  
Author(s):  
Deepa Jagyasi ◽  
P. Ubaidulla
Keyword(s):  
System Design ◽  
Millimeter Wave ◽  
Full Duplex ◽  
Wave System ◽  
Full Duplex Relay

scholarly journals Millimeter-Wave System for High-Speed Train Communications Between Train and Trackside: System Design and Channel Measurements

2019 ◽  
Vol 68 (12) ◽  
pp. 11746-11761 ◽  
Author(s):  
Guangrong Yue ◽  
Daizhong Yu ◽  
Long Cheng ◽  
Qifu Lv ◽  
Zhigang Luo ◽  
...  
Keyword(s):  
System Design ◽  
Millimeter Wave ◽  
High Speed ◽  
Wave System ◽  
Channel Measurements ◽  
High Speed Train

scholarly journals Full-Duplex Transmission of LTE-A Carrier Aggregation Signal Over a Bidirectional Seamless Fiber-Millimeter-Wave System

2016 ◽  
Vol 34 (2) ◽  
pp. 691-700 ◽  
Author(s):  
Pham Tien Dat ◽  
Atsushi Kanno ◽  
Naokatsu Yamamoto ◽  
Tetsuya Kawanishi
Keyword(s):  
Millimeter Wave ◽  
Full Duplex ◽  
Wave System ◽  
Carrier Aggregation

Full-Duplex Relay-Assisted Macrocell with Millimeter Wave Backhauls: Framework and Prospects

IEEE Network ◽  
2019 ◽  
Vol 33 (5) ◽  
pp. 190-197 ◽  
Author(s):  
Shuai Han ◽  
Yi Zhang ◽  
Weixiao Meng ◽  
Cheng Li ◽  
Zhensheng Zhang
Keyword(s):  
Millimeter Wave ◽  
Full Duplex ◽  
Full Duplex Relay

scholarly journals Coverage and Spectral Efficiency of Network Assisted Full Duplex in a Millimeter Wave System

Electronics ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 5
Author(s):  
Yingli He ◽  
Dongqin Zhao ◽  
Zhenqi Fan ◽  
An Lu ◽  
Xinjiang Xia ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Spectral Efficiency ◽  
Stochastic Geometry ◽  
Full Duplex ◽  
Wave System ◽  
Data Traffic ◽  
Duplex System ◽  
Asymmetric Data ◽  
Dynamic Time ◽  
Time Division

To cope with the growing trend of asymmetric data traffic, we introduce a novel network assisted full duplex (NAFD) for a millimeter wave system. NAFD can dynamically allocate the number of remote radio heads in the uplink mode or in the downlink mode, which can facilitate simultaneous uplink and downlink communications. In this manuscript, we use stochastic geometry to analyze the distribution of the signal-to-interference-plus-noise ratio and the data rate in a NAFD system. The numerical results verify the analysis and show that the NAFD outperforms the dynamic time division duplex system and the traditional flexible duplex system in terms of spectral efficiency.

Analysis of Optimum Precoding schemes in Millimeter Wave System

2020 ◽  
Vol 13 ◽  
Author(s):  
Divya Singh ◽  
Aasheesh Shukla
Keyword(s):  
Power Consumption ◽  
Millimeter Wave ◽  
Spectral Efficiency ◽  
Phase Shifter ◽  
Phase Shifters ◽  
Achievable Rate ◽  
Wave System ◽  
Digital To Analog Converter ◽  
Hybrid Precoding ◽  
Analog Converter

Background : Millimeter wave technology is the emerging technology in wireless communication due to increased demand for data traffic and its numerous advantages however it suffers from severe attenuation. To mitigate this attenuation, phased antenna arrays are used for unidirectional power distribution. An initial access is needed to make a connection between the base station and users in millimeter wave system. The high complexity and cost can be mitigated by the use of hybrid precoding schemes. Hybrid precoding techniques are developed to reduce the complexity, power consumption and cost by using phase shifters in place of converters. The use of phase shifters also increases the spectral efficiency. Objective: Analysis of Optimum Precoding schemes in Millimeter Wave System. Method: In this paper, the suitability of existing hybrid precoding solutions are explored on the basis of the different algorithms and the architecture to increase the average achievable rate. Previous work done in hybrid precoding is also compared on the basis of the resolution of the phase shifter and digital to analog converter. Results: A comparison of the previous work is done on the basis of different parameters like the resolution of phase shifters, digital to analog converter, amount of power consumption and spectral efficiency. Table 2 shows the average achievable rate of different algorithms at SNR= 0 dB and 5 dB. Table 3 also compares the performance achieved by the hybrid precoder in the fully connected structure with two existing approaches, dynamic subarray structure with and without switch and sub connected or partially connected structure. Table 4 gives the comparative analysis of hybrid precoding with the different resolutions of the phase shifter and DAC. Conclusion: In this paper, some available literature is reviewed and summarized about hybrid precoding in millimeter wave communication. Current solutions of hybrid precoding are also reviewed and compared in terms of their efficiency, power consumption, and effectiveness. The limitations of the existing hybrid precoding algorithms are the selection of group and resolution of phase shifters. The mm wave massive MIMO is only feasible due to hybrid precoding.

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