An OFDM-DCSK based Approach for D2D Emergency Communications
الموضوعات : Majlesi Journal of Telecommunication Devices
Majid Mobini
1
(Department of Electrical Engineering, Babol Noshirvani University of Technology, Babol, Iran.)
الکلمات المفتاحية: Emergency communications, Blind power allocation, Outage probability, OFDM-DCSK,
ملخص المقالة :
In a critical situationsuch asa flood,storm, and earthquake,where the communication infrastructures have been seriously destroyed, Device to Device (D2D) communicationscan be connectedwithout theassistanceof anyoperators. In addition, Equip the existing D2D systemsto provide high reliability, robustness, and other specific needs of the emergency services during the disasters seems to beunavoidable. In this paper, an Orthogonal Frequency Division Multiplexing based Differential Chaos Shift Keying system (OFDM-DCSK) based approach is presented to overcome the problems in emergency situations. AnOFDM-DCSK receiver needs no channel estimation for data detection. Moreover, the combination of a blind power allocation scheme with a non-coherent receiver is very desirable because these techniques savepower, without the need for communication infrastructure like Base Stations (BSs). On the other hand, the proposed system benefits from the additional advantages of DCSK-based systems such as reliability and robustness. We assign power coefficients tosub-carriers to guarantee a givenlevel of outage probability. To this aim, we calculate the outage probability for a power allocated OFDM-DCSK system using instantaneous signal-to-noise ratio expression. The power that guarantees a given level of outage probability can be calculated by a simple numerical algorithm. Simulation results validate the feasibility of the proposed scheme.
[1] K.Ali, H.X. Nguyen, Q.T. Vien, P. Shah, and Z. Chu, “Disaster management using D2D communication with power transfer and clustering techniques,” IEEE Access, vol. 6, pp.14643-14654, 2018.
[2] G. Kumar Hemanth, and G. P. Ramesh, “Intelligent gateway for real time train tracking and railway crossing including emergency path using D2D communication,” In 2017 International Conference on Information Communication and Embedded Systems (ICICES), pp. 1-4. IEEE, 2017.
[3] V.V. Phan, L. Yu, K. Horneman, and S.J. Hakola, Nokia Solutions and Networks Oy, “D2D communications considering different network operators,” U.S. Patent 9, 198, 210, 2015.
[4] H.H. Fan, A. Kilari, K.K. Vemuri, I. Daffron, J. Wang, and V., Ramamurthy, “Indoor Location for Emergency Responders Using LTE D2D Communications Waveform,” In CEUR Workshop Proceedings, vol. 2498, pp. 347-354, January, 2019.
[5] M., Elmusrati, N., Tarhuni, R., Jantti, “Performance analysis for wireless deaf sensor networks in fading channels”, IEEE VTC-Spring, 189-192, April 2007.
[6] M., Elmusrati, N., Tarhuni, R., Jantti, “Random power control for uncorrelated Rayleigh fading channels”, IEEE Int. Conf. on Signal Proc. and Comm. (ICSPC 2007), Dubai, 2007.
[7] E., Kudoh, I., Haruki, W., ZhiSen and A. Fumiyuki, “Combined effect of Inter-path interference cancellation and random transmit power control on DS-CDMA packet mobile communications,” In VTC Spring 2008-IEEE Vehicular Technology Conference, pp. 1604-1608. IEEE, 2008.
[8] M. P., Kennedy, G., Kolumban, G., Kis, and Z., Jako, “Performance evaluation of FM-DCSK modulation in multipath environments,” IEEE Trans. Circuits Syst. I: Fundam. Theory Appl., vol. 47, no. 12, pp. 1702–1711, Dec. 2000.
[9] Z., Zhibo, Z., Tong, and W., Jinxiang, “Performance of Multiple-Access DCSK Communication over a Multipath Fading Channel with Delay Spread,” Circuits, Syst. Signal Process., vol. 27, pp. 507–518, Jun. 2008.
[10] Y., Xia, C. K. Tse, and F. C. M., Lau, “Performance of differential chaos-shift-keying digital communication systems over a multipath fading channel with delay spread,” IEEE Trans. Circuits Syst. II: Exp. Briefs, vol. 51, no. 12, pp. 680–684, Dec. 2004.
[11] G., Kaddoum, F., Richardson, and F., Gagnon, “Design and analysis of a multi-carrier differential chaos shift keying communication system,” IEEE Trans. on Comm., vol. 61, no. 8, pp. 3281–3291, August 2013.
[12] S., Li, Y., Zhao, Z., Wu, ”Design and Analysis of an OFDM-based Differential Chaos Shift Keying Communication System”, Jour. of Comm., vol.10, no.3, pp. 199-205, 2015.
[13] G., Kaddoum, “Design and Performance Analysis of a Multi-user OFDM Based Differential Chaos Shift Keying Communication System”, IEEE Trans. On Comm., vol. 64, no. 1, 2016.
[14] X., Weikai, L., Wang, “Optimal power allocation in MC-DCSK Communication system”, Int. Symp. on Comm. and Info. Tech., 2014.
[15] J., Bao, W., Xu, L., Wang, and T. Huang,” Performance Analysis and Subcarriers Power Allocation for MC-QCSK”, Int. Conf. on Wireless Comm. & Signal Proc., 2015.
[16] M. B., Pursley, “Performance evaluation for phase-coded spread spectrum multiple access communication -Part I: System analysis”, IEEE Trans. Comm., vol. 25, pp. 795–799, Aug. 1977.
[17] J. G., Proakis, (2001) “Digital communications”, McGraw-Hill.
[18] I. S., Gradshteyn, I. M., Ryzhik, “Table of Integrals, Series, and Products”, 1st Edition, Academic Press., 28th May 1980.
