Institute for Theoretical Information Technology

Publications by Xiang Xu

2015

• J. A. L. Calvo, F. Schröder, X. Xu, R. Mathar, A Validation using Measurement Data of a Radio Channel Model with Geographical Information, Proceedings: 9th European Conference on Antennas and Propagation (EUCAP 2015), Lisabon, Portugal, April 2015.

2014

• T. N. Pham, X. Xu, R. Mathar, Adaptive Channel Quality Feedback for LTE, Proceedings: 22nd International Conference on Software Telecommunications and Computer Networks (SoftCOM), Split, Croatia, September 2014.
• X. Xu, T. N. Pham, R. Mathar, Second-Order Statistics of Channel State Information in A Multi-Cell Mobile Network with Fast Fading, Proceedings: IEEE 25th Annual International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC), 2014, Washington DC, September 2014.
• J. A. L. Calvo, X. Xu, F. Schröder, Investigation on Mobile Radio Propagation Channel Models based on Measurement Data, Proceedings: 18th International Student Conference on Electrical Engineering, Prague, Czech Republic, May 2014.

2013

• X. Xu, G. Kutrolli, R. Mathar, Energy Efficient Power Management for 4G Heterogeneous Cellular Networks, Proceedings: IEEE 9th International Conference on Wireless and Mobile Computing, Networking and Communications (WiMob), Lyon, France, October 2013.
• X. Xu, M. Ni, R. Mathar, Improving QoS by Predictive Channel Quality Feedback for LTE, Proceedings: 21st International Conference on Software Telecommunications and Computer Networks (Softcom), Primosten, Croatia, September 2013.
• X. Xu, G. Kutrolli, R. Mathar, Dynamic Downlink Power Control Strategies for LTE Femtocells, Proceedings: 7th International Conference on Next Generation Mobile Applications, Services, and Technologies (NGMAST), Prague, Czech, September 2013.
• X. Xu, G. Kutrolli, R. Mathar, Autonomous Downlink Power Control for LTE Femtocells based on Channel Quality Indicator, Proceedings: IEEE 24th International Symposium on Personal, Indoor and Mobile Radio Communications: Mobile and Wireless Networks (PIMRC), London, UK, September 2013.
• M. A. Ismail, X. Xu, R. Mathar, Autonomous antenna tilt and power configuration based on CQI for LTE cellular networks, Proceedings: The Tenth International Symposium on Wireless Communication Systems 2013 (ISWCS), Ilmenau, Germany, August 2013.
• A. Engels, M. Reyer, X. Xu, R. Mathar, J. Zhang, H. Zhuang, Autonomous Self-Optimization of Coverage and Capacity in LTE Cellular Networks, Vehicular Technology, IEEE Transactions on, vol. 62, no. 5, pp. 1989-2004, June 2013.
• X. Xu, F. Schröder, B. Gevreckce, G. Kutrolli, M. Ni, R. Mathar, A Physical Layer Simulator Based on Radio Wave Propagation for LTE Cellular Networks, Proceedings: 7th European Conference on Antennas and Propagation (EuCAP), Gothenburg, Sweden, April 2013.
• M. Ni, X. Xu, R. Mathar, A Channel Feedback Model with Robust SINR Prediction for LTE Systems, Proceedings: 7th European Conference on Antennas and Propagation (EuCAP), Gothenburg, Sweden, April 2013.

2012

• X. Xu, R. Mathar, Autoregressive Modeling of Frequency Selective Channels for Synchronized OFDM Systems, Proceedings: 6th European Conference on Antennas and Propagation (EUCAP), Prague, Czech, March 2012.

2011

• X. Xu, M. Reyer, F. Schröder, A. Engels, R. Mathar, A Semi-Stochastic Radio Propagation Model for Wireless MIMO Channels, Proceedings: International Symposium on Wireless Communication 2011, Aachen, Deutschland, November 2011.
• X. Xu, R. Mathar, Low Complexity Joint Channel Estimation and Decoding for LDPC Coded MIMO-OFDM Systems, Proceedings: IEEE Vehicular Technology Conference Spring (VTC-Spring) 2011, Budapest, Hungary, May 2011.

2010

• X. Xu, R. Mathar, Factor Graph based Detection and Channel Estimation for MIMO-OFDM Systems in Doubly Selective Channel, Proceedings: 7th International Symposium on Wireless Communication Systems ({IEEE} ISWCS), York, United Kingdom, September 2010.