ABSTRACT
Despite the rapid growth of next-generation cellular networks, researchers and end-users today have limited visibility into the performance and problems of these networks. As LTE deployments move towards femto and pico cells, even operators struggle to fully understand the propagation and interference patterns affecting their service, particularly indoors. This paper introduces LTEye, the first open platform to monitor and analyze LTE radio performance at a fine temporal and spatial granularity. LTEye accesses the LTE PHY layer without requiring private user information or provider support. It provides deep insights into the PHY-layer protocols deployed in these networks. LTEye's analytics enable researchers and policy makers to uncover serious deficiencies in these networks due to inefficient spectrum utilization and inter-cell interference. In addition, LTEye extends synthetic aperture radar (SAR), widely used for radar and backscatter signals, to operate over cellular signals. This enables businesses and end-users to localize mobile users and capture the distribution of LTE performance across spatial locations in their facility. As a result, they can diagnose problems and better plan deployment of repeaters or femto cells. We implement LTEye on USRP software radios, and present empirical insights and analytics from multiple AT&T and Verizon base stations in our locality.
- Linux Advanced Routing and Traffic Control. http://lartc.org.Google Scholar
- 3gpp. Radio Measurement Collection for Minimization of Drive Tests (MDT). http://www.etsi.org/deliver/etsi_ts/137300_137399/137320/11.03.00_60/ts_137320v110300p.pdf.Google Scholar
- 3rd Generation Partnership Project. E-UTRA, Physical Channels and Modulation, TS 36.211, v8.9.0. 2010.Google Scholar
- 3rd Generation Partnership Project. E-UTRA, Radio Resource Control, TS 36.331, v8.9.0. Apr 2010.Google Scholar
- 3rd Generation Partnership Project. E-UTRA, v8.8.0, Multiplexing and Channel Coding, TS 36.212. 2010.Google Scholar
- B. Ayvazian. LTE Deployment Strategies: Network Overlay vs. Single RAN. White Paper: UBM Tech, 2013.Google Scholar
- B. Conley. M2M Implications of the 4G LTE Buildout. Remote Magazine, 2013.Google Scholar
- USRP N210. http://www.ettus.com. Ettus Inc.Google Scholar
- Eurecom. OpenAirInterface. http://www.openairinterface.org/.Google Scholar
- Federal Communications Commission. Enabling Innovative Small Cell Use In 3.5 GHZ Band NPRM & Order. FCC 12-148, 2012.Google Scholar
- R. Fenby. Limitations on Directional Patterns of Phase-Compensated Circular Arrays. Radio and Electronic Engineer, 1965.Google ScholarCross Ref
- P. J. Fitch. Synthetic Aperture Radar. Springer-Verlag, 1988. Google ScholarDigital Library
- FlexNets Group. Open-Source Long-Term Evolution (LTE) Deployment (OSLD). https://sites.google.com/site/osldproject/.Google Scholar
- C. Hsieh-Chung et al. Determining RF Angle of Arrival using COTS Antenna Arrays: A Field Evaluation. In MILCOM, 2012.Google Scholar
- J. Huang, F. Qian, A. Gerber, Z. M. Mao, S. Sen, and O. Spatscheck. A Close Examination of Performance and Power Characteristics of 4G LTE Networks. MobiSys, 2012. Google ScholarDigital Library
- J. Huang, F. Qian, Y. Guo, Y. Zhou, Q. Xu, Z. M. Mao, S. Sen, and O. Spatscheck. An In-depth Study of LTE: Effect of Network Protocol and Application Behavior on Performance. SIGCOMM, 2013. Google ScholarDigital Library
- Huawei. SingleSON Whitepaper. http://www.huawei.com/en/static/SingleSON-75714-1-127574.pdf, 2012.Google Scholar
- K. Joshi, S. Hong, and S. Katti. PinPoint: Localizing Interfering Radios. NSDI, 2013. Google ScholarDigital Library
- Y. Kakishima, T. Kawamura, Y. Kishiyama, H. Taoka, and T. Nakamura. Experimental Evaluation on Throughput Performance of Asymmetric Carrier Aggregation in LTE-Advanced. In VTC Spring, 2011.Google ScholarCross Ref
- H. W. Kuhn. The Hungarian Method for the Assignment Problem. NRL Quarterly, 1955.Google ScholarCross Ref
- C. Laurendeau and M. Barbeau. Centroid Localization of Uncooperative Nodes in Wireless Networks Using a Relative Span Weighting Method. EURASIP Journal on Wireless Communications and Networking, 2010. Google ScholarDigital Library
- V. Loscri et al. Carrier Independent Localization Techniques for GSM Terminals. In PIMRC, 2008.Google ScholarCross Ref
- S. J. Orfanidis. Electromagnetic Waves and Antennas. http://www.ece.rutgers.edu/ orfanidi/ewa/.Google Scholar
- S. Salvador and P. Chan. Toward Accurate Dynamic Time Warping in Linear Time and Space. IDA, 2007. Google ScholarDigital Library
- Sanjole. The WaveJudge Wireless Test System. http://www.sanjole.com/our-products/wavejudge-test-system/.Google Scholar
- M. Solutions. White Paper: Femtocells - The Gateway to the Home. 2010.Google Scholar
- J. Sommers and P. Barford. Cell vs. WiFi: On the Performance of Metro Area Mobile Connections. IMC, 2012. Google ScholarDigital Library
- ThinkRF. Product Concept Brief for Distributed and Remote LTE Analysis. http://thinkrf.com/.Google Scholar
- J. Wang and D. Katabi. Dude, Where's My Card?: RFID Positioning That Works with Multipath and Non-line of Sight. SIGCOMM, 2013. Google ScholarDigital Library
- J. Xiong and K. Jamieson. ArrayTrack: A Fine-grained Indoor Location System. NSDI, 2013. Google ScholarDigital Library
- J. Xiong and K. Jamieson. SecureArray: Improving WiFi Security with Fine-grained Physical-layer Information. MobiCom, 2013. Google ScholarDigital Library
Index Terms
LTE radio analytics made easy and accessible
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