Performance characterization of wireless devices in controlled environments

Gaonkar, Pradnya; Tandur, Deepaknath; Rafiq, Gulzaib

doi:10.1109/icsima.2014.7047420

Cited by 1 publication

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“…4. As elaborated in [19], the performance evaluation procedure can be carried out employing the simulation, emulation, or OTA tests. However, in this paper, only simulations have been used to perform this task.…”

Section: Range Evaluation Of Ieee 80211n Systemsmentioning

confidence: 99%

“…In this paper, the focus is on the range improvement that can be obtained in IEEE 802.11n, due to the availability of MIMO modes. In [19],the closed-loop work-flow to evaluate the performance of wireless devices was introduced. A closed-loop approach reuses the results from each stage of test (i.e., simulation, emulation, and over-the-air or OTA tests) to generate more accurate results from the next stage.…”

mentioning

confidence: 99%

“…The performance results from these tests can then be used as benchmark reference figures by the commissioning engineer to design and deploy the network. The range performance evaluation considered in this paper is an extension of the work shown in [19]. Here, the simulation test methods have been used extensively to evaluate the range of the IEEE 802.11n devices under a selected configuration mode and the channel environment.…”

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Range performance evaluation of IEEE 802.11n devices

Gaonkar

Tandur

Rafiq

2015

2015 IEEE International Conference on Industrial Technology (ICIT)

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The IEEE 802.11n standard utilizes multiple-input multiple-output (MIMO) technology in order to improve the throughput as well as the transmission range of the communication link. In this paper, the range performance evaluation of IEEE 802.11n standard compliant devices based on different configuration parameters, such as modulation and coding schemes, antenna numbers, and various available MIMO operational modes, is presented. The range improvement provided by IEEE 802.11n MIMO modes over the single-input single-output (SISO) system configuration is highlighted. The improved range reduces the number of required Wi-Fi devices in an area for a given reliability factor, such as the packet error rate (PER). Conversely, the reliability of a link can be improved for a given transmission range. Availability of such performance benchmark figures under different channel conditions allow the commissioning engineer to optimally design the network before the actual deployment. As a result, the overall installation/maintenance cost can be significantly reduced. The obtained results are applicable to both the traditional star as well as mesh topology networks.Keywords-IEEE 802.11n, WLAN, multiple-input multipleoutput (MIMO), link budget, over the air tests (OTA), space-time block coding (STBC), spatial division multiplexing (SDM), transmitter beamforming (TxBF), Maximal Ratio Combining (MRC), communication range, packet error rate (PER), reliability, performance evaluation I. INTRODUCTIONWireless LAN (WLAN) is increasingly being used in outdoor industrial applications in order to address different kinds of communication requirements. WLAN technologies, such as IEEE 802.11n, provides high data rate communication, along with the advantage of working in the unlicensed spectrum that is nearly universally available. Typically, in outdoor industrial communication scenarios, higher link reliability and longer range plays a much important role than the availability of higher throughput. Although, the IEEE 802.11n standard has mainly been considered as an enabling technology to obtain higher throughput, beyond 200Mbps, and data rates up to 600 Mbps [1], [2]; however, by keeping the data rate fixed, the enhanced PHY-layer in IEEE 802.11n also enables improving the link reliability and range. A key PHY-layer modification in IEEE 802.11n includes support for several MIMO operational modes, which were not present in its predecessor technologies. Moreover, IEEE 802.11n allows channel bonding (40 MHz bandwidth), and employment of advanced coding techniques, such as the low density parity check (LDPC) codes.978-1-4799-7800-7/15/$31.00 ©2015 IEEE

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Section: Range Evaluation Of Ieee 80211n Systemsmentioning

confidence: 99%

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confidence: 99%

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