Matches in SemOpenAlex for { <https://semopenalex.org/work/W2258792692> ?p ?o ?g. }
- W2258792692 abstract "This dissertation considers the problem of scaling ad hoc wireless networks now being applied to urban mesh and sensor networks scenarios. Ad hoc networks involve multi-hop communication which has inherent scaling problems in that throughput per node drops as the square root of the number of nodes in the network. We investigate mechanisms for improving performance and scalability of multi-hop wireless networks, with focus on system architecture and routing protocol aspects. First we propose a generalized multi-tier hierarchical hybrid network with three tiers of radio nodes: low-power end-user mobile nodes (MN) at the lowest tier, higher power radio forwarding nodes (FN) that support multi-hop routing at intermediate level, and wired access points (AP) at the highest level. We present an analytical model for the capacity of the proposed network and identify conditions on transmission range and node density for scalability to be maintained. From the derived upper and lower bounds, it is shown that the low-tier capacity increase linearly with the number of FN’s, and the high-tier capacity grows linearly with the number of AP’s in the scaling region. The analytically obtained capacity results are validated with detailed system simulations for dense network scenarios. The simulation study also examines the allocation of separate channels to avoid the increased protocol overhead which arises in the single channel case. A heuristic distributed channel assignment algorithm is proposed to achieve conflict-free transmissions in the network. Next, we investigate cross-layer adaptive routing as another type of scaling mechanism. An adaptive routing framework, which allows introduction of adjustable parameters and programmable routing modules, is described. The proposed framework can support various cross-layer mechanisms including those based on integrated routing metrics that incorporate PHY and MAC information. We investigate a PHY/MAC aware routing metric (PARMA) which incorporates physical layer link speed and MAC congestion. Design and implementation of PARMA are outlined, and simulation results for typical multi-rate 802.11 ad hoc network scenarios show that PARMA helps improve throughput and decrease congestion by selecting paths with high bit-rate links while avoiding MAC congestion areas." @default.
- W2258792692 created "2016-06-24" @default.
- W2258792692 creator A5029779582 @default.
- W2258792692 creator A5077965872 @default.
- W2258792692 date "2008-01-01" @default.
- W2258792692 modified "2023-09-23" @default.
- W2258792692 title "On the scalability of ad hoc wireless networks" @default.
- W2258792692 cites W1501224742 @default.
- W2258792692 cites W1512056429 @default.
- W2258792692 cites W1512348189 @default.
- W2258792692 cites W1518384680 @default.
- W2258792692 cites W1554949789 @default.
- W2258792692 cites W1555449224 @default.
- W2258792692 cites W1571251303 @default.
- W2258792692 cites W1573889194 @default.
- W2258792692 cites W1588092092 @default.
- W2258792692 cites W1597885305 @default.
- W2258792692 cites W1793711296 @default.
- W2258792692 cites W1832953524 @default.
- W2258792692 cites W1974105863 @default.
- W2258792692 cites W1976013238 @default.
- W2258792692 cites W1992876548 @default.
- W2258792692 cites W2003531160 @default.
- W2258792692 cites W201039390 @default.
- W2258792692 cites W2027160172 @default.
- W2258792692 cites W2035541934 @default.
- W2258792692 cites W2040524424 @default.
- W2258792692 cites W2041248965 @default.
- W2258792692 cites W2045028348 @default.
- W2258792692 cites W2076267162 @default.
- W2258792692 cites W2076399305 @default.
- W2258792692 cites W2081776945 @default.
- W2258792692 cites W2083896716 @default.
- W2258792692 cites W2084692902 @default.
- W2258792692 cites W2086976228 @default.
- W2258792692 cites W2090609496 @default.
- W2258792692 cites W2091164239 @default.
- W2258792692 cites W2092511902 @default.
- W2258792692 cites W2095595543 @default.
- W2258792692 cites W2097164742 @default.
- W2258792692 cites W2097954114 @default.
- W2258792692 cites W2098043166 @default.
- W2258792692 cites W2099111195 @default.
- W2258792692 cites W2099574482 @default.
- W2258792692 cites W2101229185 @default.
- W2258792692 cites W2101771805 @default.
- W2258792692 cites W2101963262 @default.
- W2258792692 cites W2103771247 @default.
- W2258792692 cites W2103828746 @default.
- W2258792692 cites W2104278842 @default.
- W2258792692 cites W2104415796 @default.
- W2258792692 cites W2106478209 @default.
- W2258792692 cites W2107942774 @default.
- W2258792692 cites W2108904360 @default.
- W2258792692 cites W2113134966 @default.
- W2258792692 cites W2113829484 @default.
- W2258792692 cites W2114264280 @default.
- W2258792692 cites W2114510097 @default.
- W2258792692 cites W2115467602 @default.
- W2258792692 cites W2119710605 @default.
- W2258792692 cites W2119781848 @default.
- W2258792692 cites W2124309564 @default.
- W2258792692 cites W2124651399 @default.
- W2258792692 cites W2126848915 @default.
- W2258792692 cites W2128203203 @default.
- W2258792692 cites W2129292927 @default.
- W2258792692 cites W2131762760 @default.
- W2258792692 cites W2132932625 @default.
- W2258792692 cites W2133794215 @default.
- W2258792692 cites W2135035173 @default.
- W2258792692 cites W2137775453 @default.
- W2258792692 cites W2138276238 @default.
- W2258792692 cites W2144916624 @default.
- W2258792692 cites W2145967481 @default.
- W2258792692 cites W2147365937 @default.
- W2258792692 cites W2148929515 @default.
- W2258792692 cites W2149959815 @default.
- W2258792692 cites W2153090463 @default.
- W2258792692 cites W2156095993 @default.
- W2258792692 cites W2157128650 @default.
- W2258792692 cites W2157457404 @default.
- W2258792692 cites W2158241949 @default.
- W2258792692 cites W2160040368 @default.
- W2258792692 cites W2161457646 @default.
- W2258792692 cites W2161732061 @default.
- W2258792692 cites W2162180430 @default.
- W2258792692 cites W2163418239 @default.
- W2258792692 cites W2163533836 @default.
- W2258792692 cites W2163565176 @default.
- W2258792692 cites W2163746231 @default.
- W2258792692 cites W2168412207 @default.
- W2258792692 cites W2171503138 @default.
- W2258792692 cites W2435603672 @default.
- W2258792692 cites W2610335499 @default.
- W2258792692 cites W2613173048 @default.
- W2258792692 cites W3135696298 @default.
- W2258792692 cites W3217029243 @default.
- W2258792692 cites W851580123 @default.
- W2258792692 doi "https://doi.org/10.7282/t3tt4r9g" @default.
- W2258792692 hasPublicationYear "2008" @default.