Performance comparison of different multicast routing strategies in disruption tolerant networks
Disruption Tolerant Networks (DTNs) technologies are emerging solutions to networks that experience frequent partitions. As a result, multicast design in DTNs is a considerably more difficult problem compared to that in Internet and mobile ad hoc networks. In this paper, we first investigate three b...
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| Veröffentlicht in: | Computer communications 2009-10, Vol.32 (16), p.1731-1741 |
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| creator | Ye, Qing Cheng, Liang Chuah, Mooi Choo Davison, Brian D. |
| description | Disruption Tolerant Networks (DTNs) technologies are emerging solutions to networks that experience frequent partitions. As a result, multicast design in DTNs is a considerably more difficult problem compared to that in Internet and mobile ad hoc networks. In this paper, we first investigate three basic DTN multicast strategies, including unicast-based multicast (U-Multicast), static-tree-based multicast (ST-Multicast) and dynamic-tree-based multicast (DT-Multicast) strategies. Then we focus on studying two DT-Multicast routing schemes: Dynamic Tree Based Routing (DTBR) and On-demand Situation-aware Multicast (OS-Multicast), which address the challenges of utilizing opportunistic links to conduct dynamic multicast structures in DTNs. Performances of different strategies are then evaluated by simulations, including applying the real-world DTN traces. Our results show that OS-Multicast and DTBR can achieve higher message delivery ratio than that of using U-Multicast and ST-Multicast strategies. Also, to get better performance, we recommend that system designers select OS-Multicast when the source traffic rate is low. |
| doi_str_mv | 10.1016/j.comcom.2009.02.007 |
| format | Article |
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As a result, multicast design in DTNs is a considerably more difficult problem compared to that in Internet and mobile ad hoc networks. In this paper, we first investigate three basic DTN multicast strategies, including unicast-based multicast (U-Multicast), static-tree-based multicast (ST-Multicast) and dynamic-tree-based multicast (DT-Multicast) strategies. Then we focus on studying two DT-Multicast routing schemes: Dynamic Tree Based Routing (DTBR) and On-demand Situation-aware Multicast (OS-Multicast), which address the challenges of utilizing opportunistic links to conduct dynamic multicast structures in DTNs. Performances of different strategies are then evaluated by simulations, including applying the real-world DTN traces. Our results show that OS-Multicast and DTBR can achieve higher message delivery ratio than that of using U-Multicast and ST-Multicast strategies. 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As a result, multicast design in DTNs is a considerably more difficult problem compared to that in Internet and mobile ad hoc networks. In this paper, we first investigate three basic DTN multicast strategies, including unicast-based multicast (U-Multicast), static-tree-based multicast (ST-Multicast) and dynamic-tree-based multicast (DT-Multicast) strategies. Then we focus on studying two DT-Multicast routing schemes: Dynamic Tree Based Routing (DTBR) and On-demand Situation-aware Multicast (OS-Multicast), which address the challenges of utilizing opportunistic links to conduct dynamic multicast structures in DTNs. Performances of different strategies are then evaluated by simulations, including applying the real-world DTN traces. Our results show that OS-Multicast and DTBR can achieve higher message delivery ratio than that of using U-Multicast and ST-Multicast strategies. 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| ispartof | Computer communications, 2009-10, Vol.32 (16), p.1731-1741 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Disruption/delay tolerant networks Dynamic multicasting Intermittently connected networks Performance study |
| title | Performance comparison of different multicast routing strategies in disruption tolerant networks |
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