Fast frequency hopping diversity scheme for OFDM-based UWB systems

Berens, F.; Ruegg, A.; Scholand, Tobias; Hessamian-Alinejad, Arjang; Jung, Peter

doi:10.1049/el:20073776

Cited by 18 publications

(9 citation statements)

References 2 publications

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“…Additional missing building block for a complete enhanced physical layer will be proposed in the near future. An example for an enhanced building block is a fast frequency hopping scheme proposed in [22] to improve the frequency diversity gain in the non-hopping case with high coding rates.…”

Section: Discussionmentioning

confidence: 99%

The PULSER II view towards very high data rate OFDM based UWB systems

Berens

Dimitrov

Kaiser

et al. 2007

2007 16th IST Mobile and Wireless Communications Summit

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The existing UWB standard based on OFDM developed by the WIMEDIA industrial consortium can support data rates up to 480 MBit/s for a distance of up to 2m. The initial focus and key application driver of the WIMEDIA standard implementation will be the replacement of USB 2 cables in PC peripherals using the certified wireless USB protocol. Typical usage scenarios for this implementation will be the connection of a PC to hard disk drives, digital cameras, printers, etc.For future deployments of UWB technologies in multimedia and network centric consumer electronics applications higher data rates are needed. The goal of work package WP2a in the PULSERS II project is the definition and evaluation of an air interface and the corresponding building blocks that can provide data rates of up to at least 1.6 GBit/s over a distance of around 2 m. In order to achieve this goal the OFDM based air interface of the WIMEDIA system will be upgraded in an evolutionary manner with consideration for the backward compatibility of the future devices. This paper will give an overview of the state of the definition of this enhanced air-interface developed in the PULSERS II project. The concepts and the evaluation results coming out of this activity should be used as an input to the future standardization activities in the WIMEDIA group starting mid 2007.

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Section: Discussionmentioning

confidence: 99%

The PULSER II view towards very high data rate OFDM based UWB systems

Berens

Dimitrov

Kaiser

et al. 2007

2007 16th IST Mobile and Wireless Communications Summit

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“…These modulated signal is combined via parallel/serial transformer and transmits in UWB channel C(k) .Since the interval protection measure is adopted, intersymbol interference coming from multi-path effects is prevented. And then the UWB-OFDM symbols are independent [17][18].…”

Section: T=xdm (2)mentioning

confidence: 99%

Research of anti-multi tone jamming based on OFDM video transmission system

Yang

Sui

2010

2010 2nd International Asia Conference on Informatics in Control, Automation and Robotics (CAR 2010)

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A bstract-orthogonaI frequency-division multiplexing (OFDM) technology with the DCT encoding, orthogonal coding can make the transmitted video data extended to sub-channel of the each group, and this can improve the capability of the wellnarrowband jamming system. Experimental results show that, the coding method can not only make good use of the transmission of the video data, but it also has very c1ear-Narrowband interference robustness. And the mistakenly bit rate ofsystem has been improved significantly.

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“…Although several works in the literature present the merits of FFH/OFDM , these works consider usually empirical channel models and utilize only simulations for performance calculations. These studies can be summarized as follows: The performance of the FFH/OFDM scheme is investigated and compared with that of conventional OFDM scheme over empirical channels models such as ETSI/ITU Vehicular‐A and indoor Office‐A in .…”

Section: Introductionmentioning

confidence: 99%

SINR analysis of FFH/OFDM over frequency selective Rayleigh fading channel

Oturak

Öztürk

2016

Wireless Communications

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Fast frequency hopping/orthogonal frequency division multiplexing (FFH/OFDM) has been previously proposed to achieve frequency diversity over frequency selective channels. However, the performances of the FFH/OFDM scheme have been usually calculated using simulations over empirical channel models in earlier works. The main aim of this paper is to theoretically expose the diversity of the FFH/OFDM signal over statistical models, specifically Rayleigh distributed, for frequency selective fading channels. In order to achieve this aim, we first derive the decision variables and the signal-tointerference noise ratios of the FFH/OFDM signal at the output of minimum mean square error and zero forcing receivers. For various levels of quadrature amplitude modulation used in FFH/OFDM, the performances are calculated and validated via simulations. The results show that FFH/OFDM in case of zero forcing equalization does not provide any diversity gain even over a frequency selective channel. However, in case of minimum mean square error equalization, it brings significant diversity gain at high signal-to-noise ratio (SNR) values with the rise of number of sub-carriers. Moreover, the FFH/OFDM with four quadrature amplitude modulation scheme provides better performance than that of the conventional OFDM even at low SNR values, as well as a significant diversity gain at high SNR values.

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Fast frequency hopping diversity scheme for OFDM-based UWB systems

Cited by 18 publications

References 2 publications

The PULSER II view towards very high data rate OFDM based UWB systems

The PULSER II view towards very high data rate OFDM based UWB systems

Research of anti-multi tone jamming based on OFDM video transmission system

SINR analysis of FFH/OFDM over frequency selective Rayleigh fading channel

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