članak: 1 od 1  
Facta universitatis - series: Electronics and Energetics
2004, vol. 17, br. 1, str. 53-68
jezik rada: engleski
naučni članak
doi:10.2298/FUEE0401053K

Performance evaluation of an IEEE 802.11b ad-hoc network
(naslov ne postoji na srpskom)
aEricsson Expertise Ireland, Radio House, Beech Hill, Clonskeagh, Ireland
bDepartment of Computer Science, University College Dublin, Ireland

e-adresa: [srdjan.krco, marina.dupcinov]@ericsson.com

Sažetak

(ne postoji na srpskom)
The performance of an IEEE 802.11b ad-hoc network that uses the AODV (Ad hoc On-demand Distance Vector) routing protocol is evaluated. One significant issue relating to the behavior of WLAN cards that has considerable impact on AODV performance was observed during the initial testing of the system and it is discussed and a solution proposed. Some aspects of the network performance are then assessed for several scenarios with low mobility. Route discovery latency results indicate that it is possible for mobile applications to operate reasonably well over ad-hoc networks in light to moderate traffic. UDP throughput results indicate that such networks could support tens of users using low-bit rate applications or possibly higher bit rates if applications generate data in bursts. Finally, some problems with TCP operating in this context were observed.

Ključne reči

ad hoc networking; routing; IEEE 802.11b

Reference

Balakrishnan, H., Padmanabhan, V.N., Seshan, S., Katz, R.H. (1997) A comparison of mechanisms for improving TCP performance over wireless links. IEEE/ACM Transactions on Networking, vol. 5, br. 6
Broch, J., Maltz, D.A., Johnson, D.B., Hu, Y.C., Jetcheva, J. (1998) A performance comparison of multi-hop wireless ad hoc network routing protocols. u: Proceedings of Mobicom'98, Oct
Desilva, S., Das, S.R. (2000) Experimental evaluation of a wireless ad hoc network. u: Proc. of the 9th International Conference on Computer Communications and Networks (IC3N)
Dupcinov, M., Jakob, M., Murphy, S., Krco, S. (2002) Experimental performance evaluation of an ad-hoc network that uses aodv routing. u: Proc. of Medhoc'02, Sept
Gupta, P., Gray, R., Kumar, P.R. (2001) An experimental scaling law for ad hoc networks. technical report, May
Krco, S., Dupcinov, M. (2003) Improved neighbor detection algorithm for aodv routing protocol. IEEE Communications Letters, Dec
Li, J., Blake, C., Cuoto, D.D., Lee, H.I., Morris, R. (2001) Capacity of ad hoc wireless networks. u: Proceedings of ACM Mobicom
Ludwig, R., Katz, R.H. (2000) The Eiffel algorithm: Making TCP robust against spurious retransmission. ACM Computer Communication Review, Jan
Lundgren, H., Nordstrom, E., Tschudin, C. (2002) Coping with communication gray zones in IEEE 802. 11b based ad hoc networks. u: Proceedings of WoWMoM'02, Sept
Perkins, C. (2000) Ad-hoc networking. Reading, MA, itd: Addison-Wesley