Chinese Remainder Theorem-Based Sequence Design for Resource Block Assignment in Relay-Assisted Internet-of-Things Communications

Fouad, Yaser M. M.; Gohary, Ramy H.; Yanıkömeroğlu, Halim

doi:10.1109/twc.2018.2811798

Cited by 7 publications

(4 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The work assumed precise knowledge of the positions of the nodes. Different from the works in [47] and [78], where only data forwarding relay devices are selected, some works have proposed relay and source device selection algorithms. A case where source selection becomes necessary is where measurement of a parameter (such as soil moisture level, among others) is being reported by more than one IoT source device.…”

Section: ) Cross-layer-based Relay Selectionmentioning

confidence: 99%

“…Apart from the approaches to relaying challenges in the IoT that have been discussed in subsection III-A-E, allocating radio frequency resources to relay transmission has also been considered in a few studies [118], [78]. The low computational capacity of IoT devices would greatly favor a centralized resource allocation undertaken by a gateway or a BS.…”

Section: G Broader Perspectives On Relaying In Iotmentioning

confidence: 99%

“…Acquiring updated CSI within short intervals can lead to signaling overhead due to the number of training symbols or the channel feedback resulting from the constantly varying topology. To combat this challenge, resource block assignment based on the Chinese Remainder Theorem (CRT) is proposed for cellular network-provided relay-assisted IoT networks [78]. The assignment does not require the availability of CSI and central coordination from the BS because the relay terminals generate the sequence for resource block assignment in a distributed manner.…”

Section: ) Radio Resource Allocation In Relay-enabled Iotmentioning

confidence: 99%

“…Although both [118] and [78] consider resource allocation, the work in [118] does not focus on resource block allocation but rather on allocating a number of relay antennas and relay transmit power. Both works considered cellular networks to provide IoT networks with fixed relays in [118] and mobile relays in [78]. U. Tefek et al [120] proposed two relaying techniques to enable massive access of machinetype communication (MTC) devices.…”

Section: ) Radio Resource Allocation In Relay-enabled Iotmentioning

confidence: 99%

See 3 more Smart Citations

Relaying in the Internet of Things (IoT): A Survey

Uyoata¹,

Mwangama

Adeogun

2021

IEEE Access

View full text Add to dashboard Cite

The deployment of relays between Internet of Things (IoT) end devices and gateways can improve link quality. In cellular-based IoT, relays have the potential to reduce base station overload. The energy expended in single-hop long-range communication can be reduced if relays listen to transmissions of end devices and forward these observations to gateways. However, incorporating relays into IoT networks faces some challenges. IoT end devices are designed primarily for uplink communication of small-sized observations toward the network; hence, opportunistically using end devices as relays needs a redesign of both the medium access control (MAC) layer protocol of such end devices and possible addition of new communication interfaces. Additionally, the wake-up time of IoT end devices needs to be synchronized with that of the relays. For cellular-based IoT, the possibility of using infrastructure relays exists, and noncellular IoT networks can leverage the presence of mobile devices for relaying, for example, in remote healthcare. However, the latter presents problems of incentivizing relay participation and managing the mobility of relays. Furthermore, although relays can increase the lifetime of IoT networks, deploying relays implies the need for additional batteries to power them. This can erode the energy efficiency gain that relays offer. Therefore, designing relay-assisted IoT networks that provide acceptable trade-offs is key, and this goes beyond adding an extra transmit RF chain to a relay-enabled IoT end device. There has been increasing research interest in IoT relaying, as demonstrated in the available literature. Works that consider these issues are surveyed in this paper to provide insight into the state of the art, provide design insights for network designers and motivate future research directions.

show abstract

Section: ) Cross-layer-based Relay Selectionmentioning

confidence: 99%

Section: G Broader Perspectives On Relaying In Iotmentioning

confidence: 99%

Section: ) Radio Resource Allocation In Relay-enabled Iotmentioning

confidence: 99%