Exploiting Error Estimating Codes for Packet Length Adaptation in Low-Power Wireless Networks

Dong, Wei; Zhang, Pingxin

doi:10.1109/tmc.2014.2364177

Cited by 17 publications

(8 citation statements)

References 40 publications

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“…When all paths are assigned and there are still some slots that are not assigned to any links, we arrange to assign these spare slots for possible future retransmissions. During the channel allocation process, link quality is estimated using the in-packet corruptions [29,30,31] for each pair of channel and slot. The link estimation is described in Section 3.3.…”

Section: Main Design Of Lacamentioning

confidence: 99%

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Link quality aware channel allocation for multichannel body sensor networks

Gao

Zhao

Min

et al. 2017

Pervasive and Mobile Computing

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Body Sensor Network (BSN) is a typical Internet-of-Things (IoT) application for personalized health care. It consists of economically powered, wireless and implanted medical monitoring sensor nodes, which are designed to continually collect the medical information of the target patients. Multichannel is often used in BSNs to reduce the spectrum competition of the tremendous sensor nodes and the problem of channel assignment has attracted much research attention. The health sensing data in BSNs is often required to be delivered to a sink node (or server) before a certain deadline for real time monitoring or health emergency alarm. Therefore, deadline is of significant importance for multichannel allocation and scheduling. The existing works, though designed to meet the deadline, often overlook the impact of the unreliable wireless links. As a result, the health sensing data can still be overdue because of the scheduled lossy links. Besides, potential collisions in the schedules also incur considerable delay in delivering the sensing data. In this paper, we propose a novel deadlinedriven Link quality Aware Channel Assignment scheme (LACA), where link quality, deadlines and collisions are jointly considered. LACA prioritizes links with urgent deadlines and heavy collisions. Besides, LACA allows the exploition of the spare slots for retransmissions on lossy links, which can further reduce the retransmission delay. Extensive simulation experiments show that compared to the existing approaches, LACA can better utilize the wireless spectrum and achieve higher packet delivery ratio before the deadline.

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Section: Main Design Of Lacamentioning

confidence: 99%

“…However, one challenge is to obtain the real time link quality profile for each channel/slot pair as only one channel's quality can be measured at a time. Similar with [31,30], we use the 32KHz timer to measure the in-packet byte-level RSSI values. The smallest in-packet RSSI value is used as the RSSI base value.…”

Section: Link Quality Estimationmentioning

confidence: 99%

Link quality aware channel allocation for multichannel body sensor networks

Gao

Zhao

Min

et al. 2017

Pervasive and Mobile Computing

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“…This process continues until the packet is error free or error continues beyond a predetermined number of transmission and in HARQ [1] , the use of ARQ with an error correction technique called soft combining, which no longer discards the received bad data. [2] propose Plena , a packet length adaptation scheme exploiting the proposed error estimating codes (EEC) for lowpower wireless networks. Here consider two low-power MAC protocols for the energy consumption of different packet length.…”

Section: Related Workmentioning

confidence: 99%

“…Many researches [1], [2] have highlighted the limitations of these link layer protocols and proposed different solutions. These researches consider either ARQ, HARQ or combined approach of both schemes.…”

Section: Introductionmentioning

confidence: 99%

Link-Correlation-Aware Opportunistic Routing with EEC for Effective Packet Recovery

Lal¹,

George²

2016

IJERT

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Packet loss is a serious problem in the wireless networks which use conventional store-and-forward design. This paper proposes a link-correlation-aware Opportunistic routing with EEC. It provides various error recovery strategies with respect to reliability, stability, and energy consumption constraints. Here the error correction process is performed in a distributed manner where selected intermediate nodes participate in error recovery. The EEC scheme effectively detects the errors in the packet recovery so that the errors can be corrected and packet recovery can be efficient with very low latency. The use of opportunistic routing can reduce the decoding delay and reduces the packet delay by forwarding the incoming packets without waiting for the packet sent by its previous receiver to decode it. However, inappropriate assumption in opportunistic routing cause serious estimation errors in the forwarder set selection resulting in further increase in scheduling costs. The link-correlation-aware opportunistic routing overcomes the estimation errors in the forwarder set selection and reduces the scheduling costs. The proposed method is better with low latency recovery and achieves high reliability and stability.

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“…The basic idea behind all of them is to vary the frame size according to the quality of the channel. Recently, Dong et al proposed Plena [23], which is doing exactly the same thing but in an energy efficient manner. Since these schemes do not partition the frames into smaller blocks, we believe that they could be complementing our proposed scheme.…”

Section: Related Workmentioning

confidence: 99%

Green partial packet recovery in wireless sensor networks

Daghistani

Khalifa

Showail

et al. 2015

Journal of Network and Computer Applications

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Abstract-Partial packet recovery is well known for increasing network throughput and reducing frame retransmissions. However, partial packet recovery methods in the literature are not energy-aware and hence they are not suitable for the battery powered wireless sensor motes. We propose Green-Frag, a novel adaptive partial packet recovery mechanism that is energy friendly. It can help prolonging the battery life of wireless sensor motes that are usually resource constrained. It dynamically partitions the frame into smaller blocks to avoid dropping the whole frame due to a single bit error. Also, Green-Frag is able to tolerate high interference and save energy by varying the transmit power based on channel quality and interference pattern. We experimentally evaluate the energy efficiency as well as goodput and delay of Green-Frag using our TelosB sensor mote testbed. We find that Green-Frag reduces energy consumption by 33% on average compared to the state of the art partial packet recovery scheme in the literature in the presence of Wi-Fi interference. In the worst case, this reduction in energy consumption comes at the cost of 10% reduction in goodput. Finally, Green-Frag reduces the latency by 22% on average compared to other static frame fragmentation schemes.

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Exploiting Error Estimating Codes for Packet Length Adaptation in Low-Power Wireless Networks

Cited by 17 publications

References 40 publications

Link quality aware channel allocation for multichannel body sensor networks

Link quality aware channel allocation for multichannel body sensor networks

Link-Correlation-Aware Opportunistic Routing with EEC for Effective Packet Recovery

Green partial packet recovery in wireless sensor networks

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