{"id":152992,"date":"2006-08-01T00:00:00","date_gmt":"2006-08-01T00:00:00","guid":{"rendered":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/msr-research-item\/dichotomy-a-practical-architecture-for-multi-channel-ieee-802-11-multi-hop-networks\/"},"modified":"2024-10-08T12:14:38","modified_gmt":"2024-10-08T19:14:38","slug":"dichotomy-a-practical-architecture-for-multi-channel-ieee-802-11-multi-hop-networks","status":"publish","type":"msr-research-item","link":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/publication\/dichotomy-a-practical-architecture-for-multi-channel-ieee-802-11-multi-hop-networks\/","title":{"rendered":"Dichotomy: A Practical Architecture for Multi-channel IEEE 802.11 Multi-hop Networks"},"content":{"rendered":"<div class=\"asset-content\">\n<p>In this paper, we present Dichotomy, a novel practical architecture that exploits channel diversity to improve wireless multi-hop network throughput with a single transceiver. Unlike previous link-layer multichannel work that requires complex coordination and is difficult to implement, Dichotomy operates without clock synchronization, and with greatly reduced switching overhead. The core idea is to strategically select a subset of nodes as anchors whose channels seldom change; while other nodes are hoppers that dynamically switch its radio among channels of neighboring anchors. Communications are enforced between anchor-hopper pairs or same-channel anchor-anchor pairs. It uses localized distributed algorithm to select anchors and assign channels to anchors, while maximizing the channel diversity and keeping the network well connected. We implement Dichotomy as a software shim layer between IP and MAC, and evaluate it in a real test-bed. Experimental results show that Dichotomy effectively boosts the network throughput up to 100%. We further conduct extensive simulations and demonstrate that the Dichotomy architecture is scalable and achieves better or comparable performance than other previous work.<\/p>\n<\/div>\n<p><!-- .asset-content --><\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this paper, we present Dichotomy, a novel practical architecture that exploits channel diversity to improve wireless multi-hop network throughput with a single transceiver. Unlike previous link-layer multichannel work that requires complex coordination and is difficult to implement, Dichotomy operates without clock synchronization, and with greatly reduced switching overhead. The core idea is to strategically [&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":"","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"MSR-TR-2006-116","msr_organization":"Microsoft","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"","msr_doi":"","msr_arxiv_id":"","msr_s2_paper_id":"","msr_mag_id":"","msr_pubmed_id":"","msr_other_authors":"Qian Zhang, Li Erran Li","msr_other_contributors":"","msr_speaker":"","msr_award":"","msr_affiliation":"","msr_institution":"Microsoft 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