A Study on Transmission Characteristics of Large Scale Multi-hop Wireless LAN using L2 Routing

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  • Miyashita Michifumi
    Central Research Institute of Electric Power Industry Graduate School of Engineering, Tokyo Institute of Technology
  • Kurono Masahiro
    Central Research Institute of Electric Power Industry
  • Takada Jun-ichi
    Graduate School of Engineering, Tokyo Institute of Technology

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Other Title
  • Ｌ２ルーティングを用いた大規模マルチホップ無線ＬＡＮの伝送特性に関する考察
  • L2 ルーティング オ モチイタ ダイキボ マルチホップ ムセン LAN ノ デンソウ トクセイ ニ カンスル コウサツ

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Abstract

Transmission characteristics of multi-hop wireless LAN (IEEE 802.11g) are degraded according to the number of hops due to the nature of multiple access control. To decrease the number of hops in the multi-hop network, a connecting node selection method according to the depth of hop is evaluated. To prevent packet congestion due to the flooding packet using the L3 routing method, L2 routing method using only data link layer information such as received power is also evaluated. The maximum number of hops, which indicates the minimum throughput and maximum response time in the multi-hop network, is effectively decreased even under the condition of high repeater-node density by using the number of hops together with the received power as the metrics, in comparison with the conventional metric of received power only.

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