{"id":157962,"date":"2005-10-06T00:00:00","date_gmt":"2005-10-06T00:00:00","guid":{"rendered":"https:\/\/www.microsoft.com\/en-us\/research\/msr-research-item\/on-the-efficacy-of-separating-control-and-data-into-different-frequency-bands-2\/"},"modified":"2018-10-16T20:07:43","modified_gmt":"2018-10-17T03:07:43","slug":"on-the-efficacy-of-separating-control-and-data-into-different-frequency-bands-2","status":"publish","type":"msr-research-item","link":"https:\/\/www.microsoft.com\/en-us\/research\/publication\/on-the-efficacy-of-separating-control-and-data-into-different-frequency-bands-2\/","title":{"rendered":"On the Efficacy of Separating Control and Data into Different Frequency Bands"},"content":{"rendered":"<div class=\"asset-content\">\n<p>Radio spectrum allocated for use in unlicensed wireless networks is distributed across non-contiguous frequency bands. Existing MAC protocols, like IEEE 802.11, operate only in contiguous bands. Several small slices of frequency are available in lower frequency bands that are not utilized. We propose utilizing a sliver of unused spectrum in the lower frequency band as a low rate control channel to improve the capacity of infrastructure and multi-hop wireless networks. The proposed Control Channel based MAC Protocol (C2M)increases the throughput by moving the contention resolution overheads to the separate low rate channel. We allow simultaneous channel contention and data transmission by incorporating advance reservation on the control channel, and data aggregation on the data channel. Simulation results show that compared to IEEE 802.11, C2M significantly improves network performance.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Radio spectrum allocated for use in unlicensed wireless networks is distributed across non-contiguous frequency bands. Existing MAC protocols, like IEEE 802.11, operate only in contiguous bands. Several small slices of frequency are available in lower frequency bands that are not utilized. We propose utilizing a sliver of unused spectrum in the lower frequency band as [&hellip;]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"IEEE Communications Society","msr_publisher_other":"","msr_booktitle":"Second International Conference On Broadband Networks (BROADNETS) 2005","msr_chapter":"","msr_edition":"Second International Conference On Broadband Networks (BROADNETS) 2005","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"Copyright \u00a9 2007 IEEE. Reprinted from IEEE Communications Society. This material is posted here with permission of the IEEE. Internal or personal use of this material is permitted. However, permission to reprint\/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. 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Under the umbrella of the KNOWS project we are revisiting \"classical\" wireless networking problems and designing new solutions that incorporate and build upon recent advances in software and hardware technologies for networking over the recently opened white spaces spectrum. Brief Description The WhiteFiService APIs and web&hellip;","_links":{"self":[{"href":"https:\/\/www.microsoft.com\/en-us\/research\/wp-json\/wp\/v2\/msr-project\/170158"}]}},{"ID":169800,"post_title":"Self Organizing Wireless Mesh Networks","post_name":"self-organizing-wireless-mesh-networks","post_type":"msr-project","post_date":"2004-10-12 13:35:08","post_modified":"2017-06-16 10:44:18","post_status":"publish","permalink":"https:\/\/www.microsoft.com\/en-us\/research\/project\/self-organizing-wireless-mesh-networks\/","post_excerpt":"Community-based multi-hop wireless networks is disruptive to the current broadband Internet access paradigm, which relies on cable and DSL being deployed in individual homes. It is important because it allows free flow of information without any moderation or selective rate control. Compared to the large DSL and cable modem systems that are centrally managed, mesh networking is organic \u2014 everyone in the neighborhood contributes network resources and cooperates. 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