System Level Study of LTE-Advanced Multiple Antenna System with Inter-Band Carrier Aggregation

Abstract = 764 times | PDF = 143 times

Main Article Content

Dana Salahalddin Abdalla Salim Qadir Mohammed

Abstract

Spatial Multiplexing (SM) multiple antenna systems and Carrier Aggregation (CA) are techniques introduced in Long Term Evolution- Advanced (LTE−Advanced) to support high data rates by increasing the number of transmission paths and the available bandwidth respectively. Therefore, in this study we evaluate the performance of LTE-Advanced physical downlink shared channel for single and SM multiple antenna systems in two different frequency bands. The radio channel is modelled using an enhanced Three-Dimensional (3D) international telecommunication union-radio communication sector channel model integrated with base station and user mobile 3D antenna patterns. Except the total received power, similar channel statistics are observed for both frequency bands. The study is performed considering 1x1, 2x2, 4x4 antenna systems in a macro-cell urban environment at Component Carries (CC) of 2600 MHz and 800 MHz to model bands 7 and 20 of CA_7-20 respectively. The performance is evaluated in terms of throughput and SM gain for many base stations and user positions considering various modulation and coding schemes. We used the computationally efficient received bit information rate algorithm to compute the throughput as a function of channel structure and signal to noise ratio.   As expected higher throughput is observed for the 800 MHz band over the 2600 MHz band. This is due to the higher total received power of the 800 MHz band. The novel SM gain results show that the SM gain depends on the operating band and it’s less than the number of spatial links. Moreover, the efficiency of inter-band CA in increasing the data rates is a function cell radius and the number of spatial streams.

Keywords

Index Terms -LTE−Advanced, RBIR, Carrier Aggregation, MIMO.

Downloads

Download data is not yet available.

Article Details

References

[1] E. Dahlman, S. Parkvall, and J. Skold, 4G LTE/LTE-Advanced for Mobile Broadband, Elsevier/Academic Press, Oxford, 2011.
[2] 3GPP TR 36.850: “Evolved Universal Terrestrial Radio Access (E−UTRA): Inter-band Carrier Aggregation,” V11.0.0, 2013.
[3] S. Lee, S. Hyeon, J. Kim, H. Roh and W. Lee, “The Useful Impact of Carrier Aggregation: A Measurement Study in South Korea for Commercial LTE-Advanced Networks,” IEEE Vehicular Technology Magazine, 12 (1), pp. 55-62, 2017.
[4] 3GPP TSG-RAN-1 Meeting #35, R1-03-1298, “Effective SIR Computation for OFDM System-Level Simulations,” 2003.
[5] L. Wan, S. Tsai, and M. Almgren, “A Fading-Insensitive Performance Metric for a Unified Link Quality Model,” In Proceedings of the IEEE Wireless Communications and Networking Conference (WCNC), pp. 2110 – 2114, 2006.
[6] A. Ameen, E. Mellios, A. Doufexi, N. Dahnoun, and A. Nix, “LTE Advanced Downlink Throughput Evaluation in the 3G and TV White Space Bands,” In Proceedings of the IEEE International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), pp. 771-775, 2013.
[7] T. Huang, J. Yuan, X. Cheng and W. Lei, “Advanced Link-to-System Modeling of MMSE-SIC Receiver in MIMO-OFDM Systems,” In Proceedings of the IEEE International Conference on Signal Processing and Communication Systems (ICSPCS), pp. 1-6, 2015.
[8] A. Medles and C. Valadon, “Iterative MIMO Effective SNR Mapping for ML Decoder,” In Proceedings of the IEEE Vehicular Technology Conference (VTC), pp. 1-5, 2015.
[9] R. Almesaeed, A. Ameen, A. Doufexi, N. Dahnoun, and A. Nix, “A Comparison Ctudy of 2D and 3D ITU Channel Model,” In Proceedings of the IEEE Wireless Days (WD), pp. 1-7, 2013.
[10] R. Almesaeed, A. Ameen, E. Mellios, A. Doufexi, and A. Nix, “3D Channel Models: Principles, Characteristics, and System Implications,” IEEE Communications Magazine, 55 (4), pp. 152-159, 2017.
[11] ITU-R M.2135-1, “Guidelines for Evaluation of Radio Interface Technologies for IMT-Advanced”, 2009.
[12] E. Mellios, Z. Mansor, G. Hilton, A. Nix, and J. McGeehan, “Impact of Antenna Pattern and Handset Rotation on Macro-Cell and Pico-Cell Propagation in Heterogeneous LTE networks,” In Proceedings of the IEEE International Symposium on Antennas and Propagation, pp. 1-2, 2012.
[13] R. Almesaeed and A. Ameen, “Enhanced 3D ITU Channel Model”, sourceforge.net, source code, Jan., 2, 2016. [Online]. Available: http://enhanced-3d-itu-channel-model.sourceforge.net [Accesed: April. 12, 2017].
[14] 3GPP TS 36.942, “Evolved Universal Terrestrial Radio Access (E−UTRA): Radio Frequency (RF) System Scenarios,” V10.2.0, 2010.
[15] A. Doufexi, E. Tameh, A. Nix, S. Armour, and A. Molina, “Hotspot Wireless LANs to Enhance the Performance of 3G and Beyond Cellular Networks,” IEEE Communications Magazine, 41 (7), pp.58-65, 2003.
[16] 3GPP TS 36.101: “Evolved Universal Terrestrial Radio Access (E−UTRA): User Equipment (UE) Radio Transmission and Reception,” V10.10.0, 2013.