Comparison of Performance of Cognitive Radio Network under Single and Multi-User Scenario

In this paper, we analyze the performance of single user and multi-user communication model in LTE CRN links. The performance of the two models is compared in terms of outage probability and symbol error rate (SER) under small-scale fading including combining schemes. The impact of the number of antenna elements on combining schemes and two different fading environments have been investigated in terms of the above performance metrics. The performance of the communication system deteriorates under multi-user scenario because of inclusion of interference but the multi-user model represents more realistic scenarios of wireless links. We found that SER and outage probability of multi-user model comparable with single user case under multiple antennas. The analytical results are also verified by simulation with high confidence level.

[1]  Tharmalingam Ratnarajah,et al.  Bounds on the secrecy capacity with diversity combining techniques , 2012, 2012 IEEE Wireless Communications and Networking Conference (WCNC).

[2]  Richard Demo Souza,et al.  Energy Efficient Power Allocation Schemes for a Two-User Network-Coded Cooperative Cognitive Radio Network , 2016, IEEE Transactions on Signal Processing.

[3]  Shankar Prakriya,et al.  Secrecy Outage Performance of a Cooperative Cognitive Relay Network , 2017, IEEE Communications Letters.

[4]  Gi-Hong Im,et al.  Maximization of Long-Term Average Throughput for Cooperative Secondary System With HARQ-Based Primary System in Cognitive Radio Network , 2016, IEEE Communications Letters.

[5]  Daniel Benevides da Costa,et al.  Distributed Suboptimal Schemes for TAS/SC and TAS/LS in Fixed-Gain AF Relaying Systems , 2014, IEEE Transactions on Wireless Communications.

[6]  Md. Imdadul Islam,et al.  Determination of Array Gain of Single Hop to Achieve the Performance of a 2-Hop Wireless Link , 2018 .

[7]  Caijun Zhong,et al.  Secrecy Performance of Wirelessly Powered Wiretap Channels , 2016, IEEE Transactions on Communications.

[8]  Daniel Benevides da Costa,et al.  Outage Performance of Two Hop AF Relaying Systems with Co-Channel Interferers over Nakagami-m Fading , 2011, IEEE Communications Letters.

[9]  Hong Wen,et al.  Performance Analysis of Multihop Relaying Caching for Internet of Things under Nakagami Channels , 2018, Wirel. Commun. Mob. Comput..

[10]  Lu Zhao,et al.  Uplink Nonorthogonal Multiple Access Technologies Toward 5G: A Survey , 2018, Wirel. Commun. Mob. Comput..

[11]  Vivek Ashok Bohara,et al.  An Adaptive Subcarrier Sharing Scheme for OFDM-Based Cooperative Cognitive Radios , 2016, IEEE Transactions on Cognitive Communications and Networking.

[12]  Mohammad Tahir,et al.  Coalition formation for cooperative spectrum sharing in cognitive radio wireless networks using Gale Shapley algorithm , 2015, 2015 IEEE 6th Control and System Graduate Research Colloquium (ICSGRC).

[13]  Haiyan Cao,et al.  Energy-Efficiency-Based Optimal Relay Selection Scheme With a BER Constraint in Cooperative Cognitive Radio Networks , 2016, IEEE Transactions on Vehicular Technology.