Abstract
Rural areas all over the world often lacking affordable broadband Internet connectivity. High CAPEX and especially OPEX due to vast and sparsely populated areas often present an uneconomical environment for deploying traditional wireless carrier equipment. Particularly in emerging and developing countries the lack of well-trained personnel requires inherent self-managed networks. To address these issues, we have developed a carrier-grade heterogeneous Back-haul architecture which may be deployed to extend, complement or even replace traditional operator equipment. Our Wireless Back-Haul (WiBACK) network technology extends the Back-haul coverage by building on cost-effective equipment and provides highly automated self-management features still allowing for effective QoS-provisioning. Due to the limited capacity of Wireless Networks compared to cable or fiber networks, it is important to optimally utilize the wireless links and, hence, to configure them properly to match the characteristics of the wireless channel. This link calibration includes selecting the best-suited Modulation and Coding Scheme (MCS), Transmission (TX)-power and other MAC parameters such as the acknowledgment timeout. In this paper, we present our WiBACK architecture and its suitability for deployments in rural regions. Moreover, we propose a link calibration algorithm for IEEE 802.11 links and its crucial architectural role.
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IEEE standard for information technology–telecommunications and information exchange between systems local and metropolitan area networks–specific requirements part 11: Wireless lan medium access control (mac) and physical layer (phy) specifications. IEEE Std 802.11-2012 (Revision of IEEE Std 802.11-2007), pp. 1–2793, 29 (2012)
Issa, O., Li, W., Liu, H.: Performance evaluation of tv over broadband wireless access networks. IEEE Transactions on Broadcasting 56(2), 201–210 (2010)
Henkel, D., Englander, S., Kretschmer, M., Niephaus, C.: Connecting the unconnected - economic constraints and technical requirements towards a back-haul network for rural areas. In: 2011 IEEE GLOBECOM Workshops (GC Wkshps), pp. 1039–1044 (December 2011)
Banchs, A., Bayer, N., Chieng, D., de la Oliva, A., Gloss, B., Kretschmer, M., Murphy, S., Natkaniec, M., Zdarsky, F.: Carmen: Delivering carrier grade services over wireless mesh networks. In: Proc. IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2008, September 15-18, pp. 1–6 (2008)
IEEE standard for local and metropolitan area networks- part 21: Media independent handover. IEEE Std 802.21-2008, pp. c1–301 (January 2009)
Farrel, A., Vasseur, J.-P., Ash, J.: A Path Computation Element (PCE)-Based Architecture. RFC 4655 (Informational) (August 2006)
Moy, J.: OSPF Version 2. RFC 2328 (Standard) (April 1998); Updated by RFC 5709
Clausen, T., Jacquet, P.: Optimized Link State Routing Protocol (OLSR). RFC 3626 (Experimental) (October 2003)
Katz, D., Kompella, K., Yeung, D.: Traffic Engineering (TE) Extensions to OSPF Version 2. RFC 3630 (Proposed Standard) (September 2003); Updated by RFCs 4203, 5786
Bernardos, C.J., Fitzpatrick, J., Kuo, F.-C., Kretschmer, M., Lessmann, J., Niephaus, C., de la Oliva, A., Robitzsch, S., Zdarsky, F.: Carrier-grade wireless mesh networks: D3.4-unicast and multicast routing specification and analysis (December 2009), http://www.ict-carmen.eu/wp-uploads/2009/D3.4.pdf
del Prado Pavon, J., Shankar, S.: Impact of frame size, number of stations and mobility on the throughput performance of IEEE 802.11e. In: 2004 IEEE Wireless Communications and Networking Conference, WCNC, vol. 2, pp. 789–795 (March 2004)
Kretschmer, M., Niephaus, C., Ghinea, G.: QoS-aware flow monitoring and event creation in heterogeneous MPLS-based wireless mesh networks supporting unidirectional links. In: 9th IEEE Malaysia International Conference on Communications, Kuala Lumpur, Malaysia (2009)
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Niephaus, C., Kretschmer, M., Jonas, K., Kessel, M., Rademacher, M. (2013). Link Calibration in QoS-Aware Wireless Back-Haul Networks for Rural Areas. In: Jonas, K., Rai, I.A., Tchuente, M. (eds) e-Infrastructure and e-Services for Developing Countries. AFRICOMM 2012. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 119. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-41178-6_9
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DOI: https://doi.org/10.1007/978-3-642-41178-6_9
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