Outdoor Long-Range WLANs: A Lesson for IEEE 802.11ah

Several service applications have been reported by many who proposed the use of wireless LANs (WLANs) over a wide variety of outdoor deployments. In particular, the upcoming IEEE 802.11ah WLAN protocol will enable a longer transmission range between WLAN access points (APs) and stations (STAs) up to multiple kilometers using carrier frequencies at 900 MHz. However, limitations of WLAN outdoor installations have been found of the plethora of WLAN protocols in experimental studies. This article summarizes the challenges and provides a comprehensive overview of suggested improvements. As the standardization of the IEEE 802.11ah is reaching its final stage, important protocol aspects as well as new features are to be outlined. Interference problems and issues with the WLAN configuration, the physical layer (PHY), and media access control (MAC) are of paramount importance in outdoor WLAN networks, and thus, are discussed in detail. Further, we examine the reported upper boundaries in throughput and link reliability of long-range WLANs in different environments, including sea-surfaces, unmanned aerial vehicles (UAVs), and tunnels. At the end of this study, we reflect on the major issues regarding sub-1 GHz (S1G) WLANs and propose avenues for further research.

[1]  John S. Seybold,et al.  Introduction to RF Propagation: Seybold/Introduction to RF Propagation , 2005 .

[2]  Vijay Sivaraman,et al.  Experimental study of mobility in the soccer field with application to real-time athlete monitoring , 2010, 2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications.

[3]  Lakshminarayanan Subramanian,et al.  Packet Loss Characterization in WiFi-Based Long Distance Networks , 2007, IEEE INFOCOM 2007 - 26th IEEE International Conference on Computer Communications.

[4]  Xuemin Shen,et al.  Scaling Laws for Throughput Capacity and Delay in Wireless Networks — A Survey , 2014, IEEE Communications Surveys & Tutorials.

[5]  Sung-Ju Lee,et al.  Characterizing WiFi link performance in open outdoor networks , 2011, 2011 8th Annual IEEE Communications Society Conference on Sensor, Mesh and Ad Hoc Communications and Networks.

[6]  Ignas G. Niemegeers,et al.  Analysis of the Performance Boundaries of Sub-1 GHz WLANs in the 920MHz ISM-Band , 2013, ISWCS.

[7]  Shahin Farahani,et al.  ZigBee Wireless Networks and Transceivers , 2008 .

[8]  David E. Culler,et al.  Versatile low power media access for wireless sensor networks , 2004, SenSys '04.

[9]  J. Seybold.  Introduction to RF Propagation , 2005 .

[10]  Christian Wietfeld,et al.  Interference Aware Positioning of Aerial Relays for Cell Overload and Outage Compensation , 2012, 2012 IEEE Vehicular Technology Conference (VTC Fall).

[11]  Lei Zheng,et al.  Performance analysis of grouping strategy for dense IEEE 802.11 networks , 2013, 2013 IEEE Global Communications Conference (GLOBECOM).

[12]  Ren Ping Liu,et al.  Power save with Offset Listen Interval for IEEE 802.11ah Smart Grid communications , 2013, 2013 IEEE International Conference on Communications (ICC).

[13]  Jang-Ping Sheu,et al.  WSNTB: A testbed for heterogeneous wireless sensor networks , 2008, 2008 First IEEE International Conference on Ubi-Media Computing.

[14]  Stefan Aust,et al.  Sub 1GHz wireless LAN propagation path loss models for urban smart grid applications , 2012, 2012 International Conference on Computing, Networking and Communications (ICNC).

[15]  S. H. Aust.  Advanced Wireless Local Area Networks in the Unlicensed Sub-1GHz ISM-bands , 2014 .

[16]  Mikael Gidlund,et al.  Wireless Coexistence between IEEE 802.11- and IEEE 802.15.4-Based Networks: A Survey , 2011, Int. J. Distributed Sens. Networks.

[17]  Bhaskaran Raman,et al.  Implementation-Based Evaluation of a Full-Fledged Multihop TDMA-MAC for WiFi Mesh Networks , 2014, IEEE Transactions on Mobile Computing.

[18]  Daisuke Umehara,et al.  Software Radio-Based Distributed Multi-User MIMO Testbed: Towards Green Wireless Communications , 2013, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[19]  Gorazd Kandus,et al.  A Survey of Radio Propagation Modeling for Tunnels , 2014, IEEE Communications Surveys & Tutorials.

[20]  Chong Eng Tan,et al.  Self-sustainable energy efficient long range WiFi network for rural communities , 2011, 2011 IEEE GLOBECOM Workshops (GC Wkshps).

[21]  Mahesh K. Marina,et al.  Tegola tiered mesh network testbed in rural Scotland , 2008, WiNS-DR '08.

[22]  Joan Manuel Marquès,et al.  REMOTE, a Wireless Sensor Network Based System to Monitor Rowing Performance , 2009, Sensors.

[23]  Hung-Yu Wei,et al.  DeepSleep: IEEE 802.11 enhancement for energy-harvesting machine-to-machine communications , 2012, 2012 IEEE Global Communications Conference (GLOBECOM).

[24]  Kemal Akkaya,et al.  A taxonomy and evaluation for developing 802.11‐based wireless mesh network testbeds , 2012, Int. J. Commun. Syst..

[25]  R. Tibshirani,et al.  An introduction to the bootstrap , 1993 .

[26]  Najah Abu Ali.  Power management in solar-powered long range WiFi test-bed. , 2012, ICC 2012.

[27]  Y. S. Meng,et al.  Multipath characterization and fade mitigation of air-to-ground propagation channel over tropical sea surface at C band , 2010, 2010 IEEE Antennas and Propagation Society International Symposium.

[28]  Ignas G. Niemegeers,et al.  Performance study of MIMO-OFDM platform in narrow-band sub-1 GHz wireless LANs , 2013, 2013 11th International Symposium and Workshops on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt).

[29]  Ali Hazmi,et al.  Feasibility study of IΕΕΕ 802.11ah radio technology for IoT and M2M use cases , 2012, 2012 IEEE Globecom Workshops.

[30]  Monisha Ghosh,et al.  Puncturing of CRC Codes for IEEE 802.11ah , 2013, 2013 IEEE 78th Vehicular Technology Conference (VTC Fall).

[31]  Ching-Yao Huang,et al.  Energy-Saving Massive Access Control and Resource Allocation Schemes for M2M Communications in OFDMA Cellular Networks , 2012, IEEE Wireless Communications Letters.

[32]  Nada Golmie,et al.  NIST Priority Action Plan 2, Guidelines for Assessing Wireless Standards for Smart Grid Applications , 2011 .

[33]  Ying-Chang Liang,et al.  Robust linear beamforming for MIMO relay with imperfect Channel State Information , 2010, 21st Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

[34]  Robert Morris,et al.  Link-level measurements from an 802.11b mesh network , 2004, SIGCOMM 2004.

[35]  Sherali Zeadally,et al.  Experimental Evaluation and Characterization of Long-Distance 802.11g Links , 2008, Seventh International Conference on Networking (icn 2008).

[36]  Ignas G. Niemegeers,et al.  IEEE 802.11ah: Advantages in standards and further challenges for sub 1 GHz Wi-Fi , 2012, 2012 IEEE International Conference on Communications (ICC).

[37]  Sanjay Jha,et al.  Link characterization for Aerial Wireless Sensor Networks , 2011, 2011 IEEE GLOBECOM Workshops (GC Wkshps).

[38]  Ali Hazmi,et al.  Performance evaluation of IEEE 802.11ah and its restricted access window mechanism , 2014, 2014 IEEE International Conference on Communications Workshops (ICC).

[39]  Ignas G. Niemegeers,et al.  Address autoconfiguration in wireless ad hoc networks: protocols and techniques , 2008, IEEE Wireless Communications.

[40]  V. P. Tamma.  An Empirical Approach Towards Zero Energy Networks (ZEN) , 2012 .

[41]  Yee Hui Lee,et al.  Measurements and Characterizations of Air-to-Ground Channel Over Sea Surface at C-Band With Low Airborne Altitudes , 2011, IEEE Transactions on Vehicular Technology.

[42]  Saewoong Bahk,et al.  Group-based contention in IEEE 802.11ah networks , 2014, 2014 International Conference on Information and Communication Technology Convergence (ICTC).

[43]  Jaime Lloret,et al.  How the Weather Impacts on the Performance of an Outdoor WLAN , 2012, IEEE Communications Letters.

[44]  Ignas G. Niemegeers,et al.  Performance evaluation of Sub 1 GHz wireless sensor networks for the smart grid , 2012, 37th Annual IEEE Conference on Local Computer Networks.

[45]  Kae Hsiang Kwong,et al.  Capacity and coverage analysis of rural multi-radio multi-hop network deployment using IEEE802.11n radios , 2011, 2011 IEEE 10th Malaysia International Conference on Communications.

[46]  Stefan Aust,et al.  Sub 1GHz wireless LAN deployment scenarios and design implications in rural areas , 2011, 2011 IEEE GLOBECOM Workshops (GC Wkshps).

[47]  Ignas G. Niemegeers,et al.  Sector-based RTS/CTS access scheme for high density WLAN sensor networks , 2014, 39th Annual IEEE Conference on Local Computer Networks Workshops.

[48]  Helmut Bölcskei,et al.  Outdoor MIMO wireless channels: models and performance prediction , 2002, IEEE Trans. Commun..

[49]  Ignas G. Niemegeers,et al.  Codebook Selection Strategies in Long-range Sub-1 GHz WLANs , 2014, ANT/SEIT.

[50]  Sumit Roy,et al.  Contention Window and Transmission Opportunity Adaptation for Dense IEEE 802.11 WLAN Based on Loss Differentiation , 2008, 2008 IEEE International Conference on Communications.

[51]  Ren Ping Liu,et al.  WLAN Power Save with Offset Listen Interval for Machine-to-Machine Communications , 2014, IEEE Transactions on Wireless Communications.

[52]  Christian Wietfeld,et al.  Coverage evaluation of wireless networks for Unmanned Aerial Systems , 2010, 2010 IEEE Globecom Workshops.

[53]  Masahiro Morikura,et al.  Game-Theoretic Analysis of Multibandwidth Channel Selection by Coordinated APs in WLANs , 2013, IEICE Trans. Commun..

[54]  Tapan K. Sarkar,et al.  Coverage analysis of outdoor public WiFi hotspot using full-wave electromagnetic simulation , 2013, 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI).

[55]  Stefan Aust,et al.  Enhanced energy consumption reduction schemes in Radio-On-Demand WLANs , 2013, 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC).

[56]  Ali Hazmi,et al.  Performance Enhancement and Evaluation of IEEE 802.11ah Multi-Access Point Network Using Restricted Access Window Mechanism , 2014, 2014 IEEE International Conference on Distributed Computing in Sensor Systems.

[57]  Yue Yang,et al.  Grouping-Based MAC Protocols for EV Charging Data Transmission in Smart Metering Network , 2014, IEEE Journal on Selected Areas in Communications.

[58]  F. J. Gonzalez-Castano,et al.  Ambient intelligence assistant for running sports based on k-NN classifiers , 2010, 3rd International Conference on Human System Interaction.

[59]  Li-Chia Choo,et al.  CRC Codes for Short Control Frames in IEEE 802.11ah , 2014, 2014 IEEE 80th Vehicular Technology Conference (VTC2014-Fall).

[60]  Giuseppe Bianchi,et al.  802.11b/g link level measurements for an outdoor wireless campus network , 2006, 2006 International Symposium on a World of Wireless, Mobile and Multimedia Networks(WoWMoM'06).

[61]  Yuan Zhou,et al.  Advances in IEEE 802.11ah standardization for machine-type communications in sub-1GHz WLAN , 2013, 2013 IEEE International Conference on Communications Workshops (ICC).

[62]  Tracy Camp,et al.  TestbedProfiler: A validation tool for wireless sensor network testbed deployment , 2010, IEEE Local Computer Network Conference.

[63]  Geoffrey M. Voelker,et al.  Usage Patterns in an Urban WiFi Network , 2010, IEEE/ACM Transactions on Networking.

[64]  H. T. Kung,et al.  Performance Measurement of 802.11a Wireless Links from UAV to Ground Nodes with Various Antenna Orientations , 2006, Proceedings of 15th International Conference on Computer Communications and Networks.

[65]  Ignas G. Niemegeers,et al.  A framework for massive access and radio resource management in urban WLANs , 2013, 38th Annual IEEE Conference on Local Computer Networks - Workshops.

[66]  Daniele Trinchero,et al.  Reliability and scalability analysis of low cost long distance IP-based wireless networks , 2009, 2009 ITU-T Kaleidoscope: Innovations for Digital Inclusions.

[67]  Kenichi Mase.  Information and Communication Technology and Electric Vehicles - Paving the Way towards a Smart Community , 2012, IEICE Trans. Commun..

[68]  Kameswari Chebrolu,et al.  Long-distance 802.11b links: performance measurements and experience , 2006, MobiCom '06.

[69]  Morten Tolstrup.  The Link Budget , 2008 .

[70]  Mairtin O'Droma,et al.  Analysis of Inter-Modulation Products and Nonlinear Distortion in RF OFDM Transmitter Systems , 2009, VTC Spring 2009 - IEEE 69th Vehicular Technology Conference.

[71]  Stefan Aust,et al.  Advances in Wireless M 2 M and IoT : Rapid SDR-prototyping of IEEE 802 . 11 , 2014 .

[72]  Giuseppe Bianchi,et al.  A Survey of Medium Access Mechanisms for Providing QoS in Ad-Hoc Networks , 2013, IEEE Communications Surveys & Tutorials.

[73]  Kameswari Chebrolu,et al.  Design and evaluation of a new MAC protocol for long-distance 802.11 mesh networks , 2005, MobiCom '05.