Rate Adaptation Scheme for Slot Reservation in WiMedia MAC

Kim, Junwhan; Huh, Jae-Doo

doi:10.1109/icce.2007.341403

Cited by 7 publications

(8 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fig. 17 shows that our proposed schemes (IB, CGB, and RSB) achieve better performance than the schemes in [10] and [20]. Table 3 summarizes the average performance gain achieved by the IB scheme over CGB, RSB, and the schemes in [10] and [20].…”

Section: Im-drp With Rate Adaptationmentioning

confidence: 98%

“…In [10], the authors proposed a rate adaptation scheme for OFDM-based UWB systems. According to this scheme, the transmission rate is adapted on per superframe basis according to the measured distance between the transmitter and the receiver, and the average received signal strength indicator (RSSI).…”

Section: Related Workmentioning

confidence: 99%

“…According to this mechanism, the receiver uses Block acknowledgements (B-ACK) to recommend a transmission rate to be used in the upcoming reserved MASs. The main goal of rate adaptation in [10] and [20] is to satisfy a required PER during the ongoing transmission. The measured SINR in some MASs are used to select the transmission rate in other MASs.…”

Section: Related Workmentioning

confidence: 99%

“…In a WPAN, channel conditions are unlikely to change dramatically between two successive superframes. Therefore, the channel state measured during a given reservation (i.e., a sequence of reserved MASs) in a superframe can be adequately used to adapt the transmission rate for the same reservation in the subsequent superframe [10].…”

Section: Rate Adaptationmentioning

confidence: 99%

“…17 depicts the performance under elastic traffic of the IB, CGB, RSB. We also include the performance of the rate adaptation schemes in [10] and [20]. This figure shows that the IB scheme achieves high throughput and low PER relative to the other schemes, but it has higher deficiency and blocking rate.…”

Section: Im-drp With Rate Adaptationmentioning

confidence: 99%

See 4 more Smart Citations

Interference Management and Rate Adaptation in OFDM-Based UWB Networks

Al‐Zubi

Krunz

2010

IEEE Trans. on Mobile Comput.

View full text Add to dashboard Cite

Abstract-Ultra-wideband (UWB) communications has emerged as a promising technology for high data rate wireless personal area networks (WPANs). Several proposals for UWB-based WPANs have been made. One widely popular proposal was standardized by ECMA-368, and is based on OFDM. In this paper, we address one of the important aspects that impact the performance of this standard, namely interference management between different uncooperative beacon groups that operate simultaneously over the same area. We first propose an interference management distributed reservation protocol (IM-DRP) for OFDM-based UWB communications. IM-DRP aims at improving the throughput of an UWB WPAN by reducing interference between uncooperative beacon groups. We then integrate IM-DRP into the design of a rate adaptation strategy that exploits the multi-rate capability of OFDM-based UWB systems. Besides maintaining a target packet error rate, our proposed strategy attempts to reduce the required reservation time over a link, hence allowing more links to be simultaneously activated. This improves the overall network throughput. Simulations are used to demonstrate the performance gain of our proposed schemes.Index Terms-OFDM-based UWB WPANs, interference management, multi-rate capability, rate adaptation schemes .

show abstract