New high-rate wireless LAN standards

Nee, Richard van; Awater, G.A.; Morikura, Masahiro; Takanashi, H.; Webster, M.; Halford, K.W.

doi:10.1109/35.809389

Cited by 422 publications

(133 citation statements)

References 6 publications

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“…The main differences between the IEEE 802.11a (at 5 GHz) and HIPERLAN/2 standards occur at the MAC layer [1,[5][6][7].…”

Section: Medium Access Controlmentioning

confidence: 99%

“…Besides proprietary technology, IEEE 802.11 provides an internationally accepted standard for WLANs with data rates up to 2 Mb/s. A higher-rate extension to this standard, 802.11b, will achieve data rates of up to 11 Mb/s, also operating in the 2.4 GHz ISM band [1]. However, the ever increasing demand for higher bit rates and the need for dedicated spectrum have led to the development of new standards and the allocation of new spectrum.…”

Section: Introductionmentioning

confidence: 99%

“…The two standards differ primarily in the MAC [1,[4][5][6]. However, some differences also occur in the PHY layers.…”

Section: Introductionmentioning

confidence: 99%

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A comparison of the HIPERLAN/2 and IEEE 802.11a wireless LAN standards

et al. 2002

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At present, WLANs supporting broadband multimedia communication are being developed and standardized around the world. Standards include HIPERLAN/2, defined by ETSI BRAN, 802.11a, defined by the IEEE, and HiSWANa defined by MMAC. These systems provide channel adaptive data rates up to 54 Mb/s (in a 20 MHz channel spacing) in the 5 GHz radio band. In this article an overview of the HIPERLAN/2 and 802.11a standards is presented together with software simulated physical layer performance results for each of the defined transmission modes. Furthermore, the differences between these two standards are highlighted (packet size, upper protocol layers etc.), and the effects of these differences on throughput are analyzed and discussed.

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“…The main differences between the IEEE 802.11a (at 5 GHz) and HIPERLAN/2 standards occur at the MAC layer [1,[5][6][7].…”

Section: Medium Access Controlmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A comparison of the HIPERLAN/2 and IEEE 802.11a wireless LAN standards

et al. 2002

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“…So, OFDM system was selected as the standards of IEEE 802.11a, IEEE 802.11g, high wireless LAN of HIPERLAN/2, IEEE 802. 16 BWA, DAB and DVB-T which need high data rate [9][10][11][12]. But, main disadvantage is that OFDM system is sensitive against frequency offset [13].…”

Section: Introductionmentioning

confidence: 99%

An Elaborate Frequency Offset Estimation for Ofdm Systems

Nam¹,

Yoon²,

Song³

2008

PIER Letters

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Abstract-In this paper, a carrier frequency offset estimation scheme in orthogonal frequency division multiplexing is proposed. We focus on increasing the correlation of each PN sequence code repeated in one preamble. We aim at getting an efficiency like using many preambles. The proposed method can improve the performance of the system by estimating fine frequency offset. Also, the proposed method enhances reliability by maximizing the number of correlations compared with the established method in time domain.

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“…For example, reference [2] proposes a high speed asymmetrical wireless system based on EDGE uplink and OFDM downlink with the requirements envisioned for 3G systems in mind. Reference [3] focuses on the physical and MAC layer of the 2.4 GHz and 5.2 GHz band IEEE 802.11 standard as well as on the Magic WAND project as a precursor of the HiperLAN-2 standard. A description of the structure of the data packet, of the underlying OFDM symbol, and of the training and pilot signals is given for the OFDM based 5.2 GHz band 802.11 standard and the Magic WAND project.…”

Section: Introductionmentioning

confidence: 99%

OFDM uplink for interactive broadband wireless: analysis and simulation in the presence of carrier, clock and timing errors

El-Tanany

Hazy

2001

IEEE Trans. on Broadcast.

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Abstract-This paper is concerned with the performance of OFDM when used as a modulation and access technique for the uplink of an interactive broadband wireless system or in the return link of a terrestrial television system. In such an application, the uplink performance becomes strongly dependent on the discrepancies related to carrier frequencies, sampling frequencies and time references used by different users. In addition, different uplink subcarriers will see different channels since individual subcarriers are allocated to different users. The main purpose of this paper is to provide the analytical tools necessary to quantify the performance of such an uplink by taking into consideration the error sources indicated above. The analysis is made from the uplink users' perspective; i.e., the results are presented with the subcarrier index as a parameter. Average uplink user performance is obtained by averaging over the tone index. Extensive computer simulations have been carried out and the results are in strong agreement with the analytical predictions.Index Terms-Broadband wireless systems, interactive broadband, modulation, OFDM, uplink synchronization.

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New high-rate wireless LAN standards

Cited by 422 publications

References 6 publications

A comparison of the HIPERLAN/2 and IEEE 802.11a wireless LAN standards

A comparison of the HIPERLAN/2 and IEEE 802.11a wireless LAN standards

An Elaborate Frequency Offset Estimation for Ofdm Systems

OFDM uplink for interactive broadband wireless: analysis and simulation in the presence of carrier, clock and timing errors

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