Throughput Measurement for UDP Traffic in an IEEE 802.11g WLAN

Wijesinha, Alexander L.; Song, Yeong-Tae; Krishnan, Michael N.; Mathur, Vipul; Ahn, Jae Hoon; Shyamasundar, V.

doi:10.1109/snpd-sawn.2005.76

Cited by 46 publications

(21 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The simulation outcomes showed us that we were able to reach a maximum achievable bandwidth of around 20 Mbps. This represents a reasonable value over the declared 54 Mbps even in the real world [9].…”

Section: Simulation Assessmentioning

confidence: 67%

High Mobility in a Realistic Wireless Environment: a Mobile IP Handoff Model for NS-2

Palazzi

Chin

Ray

et al. 2007

2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities

View full text Add to dashboard Cite

Abstract-Wireless technology has the great merit to allow users' mobility. However, this may affect the functioning of all the applications and traditional protocols, worsening the already known problems with wireless connections and requiring the design and evaluation of novel solutions. Scenarios involving high mobility can be very complex; think, for instance, to a realistic case involving several nodes, representing people and cars moving under the coverage of several base stations. Since the geographical width and the number of involved nodes in such a scenario, simulations represent a fundamental tool to analyze the state of the art and newly proposed solutions. Unfortunately, modeling mobility with the most popular network simulator in the scientific community (i.e., NS-2) is not an easy task as its handoff mechanism appears faulty when coupled with a realistic model for wireless transmissions. In this paper, we discuss this problem and propose a new simulation module for Mobile IP able to guarantee smooth handoffs even with realistic simulation set-ups.

show abstract

Section: Simulation Assessmentioning

confidence: 67%

High Mobility in a Realistic Wireless Environment: a Mobile IP Handoff Model for NS-2

Palazzi

Chin

Ray

et al. 2007

2007 3rd International Conference on Testbeds and Research Infrastructure for the Development of Networks and Communities

View full text Add to dashboard Cite

show abstract

“…It was found that the UDP throughput in an IEEE802.11g WLAN without RTS/CTS was 13.5Mbps [20] which is twice more than the 7Mbps achieved by the WiFi network as shown in Figure 5. It is also noticeable that there is a dip in the WiFi curve between UDP input loads of 15Mbps and 30Mbps.…”

Section: Udp Throughput Test Resultsmentioning

confidence: 89%

Experimental Study of Voice over IP Services over Broadband Wireless Networks

Peh

Seah

Chew

et al. 2008

22nd International Conference on Advanced Information Networking and Applications (Aina 2008)

View full text Add to dashboard Cite

In this paper, a hybrid network consisting of both WiMAX and WiFi links is set up and used as a testbed for Voice-over-IP (VoIP) performance studies. Relevant metrics are defined and used to analyse the performance of this hybrid network and its ability to support VoIP calls. End-to-end delay and packets loss are measured as a function of number of ongoing VoIP calls. Based on these measured results, we propose a procedure to evaluate the maximum number of ongoing calls can be supported by the hybrid network while maintain the call quality at the desired level using the ITU-T specified E-model. The experimental studies show that this hybrid network is capable of supporting real-time VoIP calls, and that the network is able to support up to 12 simultaneous G.711-based VoIP calls and more than 20 simultaneous G.729-based VoIP calls. While it remains a challenge to ascertain the exact reasons behind the low network utilization, the proposed procedure for determining the maximum number of VoIP calls which meet the QoS requirements will be useful and valuable to service providers with the intention to provide VoIP services over such hybrid networks that interoperate these two technologies in the near future.

show abstract

“…A study of a large trace of TCP connections from an Internet backbone [8] shows TCP round-trip times that traverse the Internet can vary from 10-1000 milliseconds with the median of the minimum 4 round-trip time about 200 milliseconds. While IEEE 802.11g links have a theoretical capacity of 54 Mbps, typical application level throughputs can be as low as a third of this capacity [18]. Putting this round-trip time and this bandwidth together in the guideline suggests queue capacities should be about 300 packets.…”

Section: Discussionmentioning

confidence: 99%

Measuring queue capacities of IEEE 802.11 wireless access points

Feng

et al. 2007

2007 Fourth International Conference on Broadband Communications, Networks and Systems (BROADNETS '07)

View full text Add to dashboard Cite

Abstract-While queue capacities have a direct impact on loss and latency during congestion, and wireless networks continue to spread in university, corporate and home networks, little is publicly known about the queue capacities of wireless access points (APs). This paper presents and deploys the Access Point Queue (APQ) methodology for externally estimating the queue capacity for a wireless AP. APQ determines the AP saturation point, measures the baseline delay, induces the saturation rate to measure the delay with a full AP queue and computes the queue capacity. APQ is deployed to determine the queue capacities of three commercial class and four residential class APs. The wireless AP queue capacities are shown to be packet-based and to range from 50 packets to over 350 packets. The fact that queue capacities vary so much among devices targeted for the same network configuration suggests future work to determine the most appropriate queue capacity.

show abstract

Throughput Measurement for UDP Traffic in an IEEE 802.11g WLAN

Cited by 46 publications

References 5 publications

High Mobility in a Realistic Wireless Environment: a Mobile IP Handoff Model for NS-2

High Mobility in a Realistic Wireless Environment: a Mobile IP Handoff Model for NS-2

Experimental Study of Voice over IP Services over Broadband Wireless Networks

Measuring queue capacities of IEEE 802.11 wireless access points

Contact Info

Product

Resources

About