Zobrazeno 1 - 10
of 31
pro vyhledávání: '"Borkotoky, Siddhartha"'
Autor:
Borkotoky, Siddhartha S.
We consider a LoRa sensor network featuring a UAV-mounted gateway for collecting sensor data (messages). Wake-up radios (WuR) are employed to inform the sensors of the UAV's arrival. Building on an existing random access scheme for such setups, we pr
Externí odkaz:
http://arxiv.org/abs/2403.09782
We present a transmission scheme aimed at integrating wake-up radios (WuR) into LoRa sensor networks featuring UAV-mounted gateways. The sensors are informed of the UAV's arrival with the help of WuR, followed by sensor-to-UAV data transfer with freq
Externí odkaz:
http://arxiv.org/abs/2305.13810
We propose application-layer coding schemes to recover lost data in delay-sensitive uplink (sensor-to-gateway) communications in the Internet of Things. Built on an approach that combines retransmissions and forward erasure correction, the proposed s
Externí odkaz:
http://arxiv.org/abs/2207.11566
To enhance the reliability of LoRa sensor networks, we propose two opportunistic forwarding protocols in which relays overhear sensor-to-gateway messages and periodically forward them to a gateway. To reduce the number of transmissions, the relays fo
Externí odkaz:
http://arxiv.org/abs/2109.06018
The chirp spread spectrum (CSS) modulation scheme is employed by the physical layer of the Long Range (LoRa) communication technology. In this paper, we examine the performance of CSS over time-varying channels whose gain may change during the recept
Externí odkaz:
http://arxiv.org/abs/2009.01176
We derive the probability distribution of the link outage duration at a typical receiver in a wireless network with Poisson distributed interferers sending messages with slotted random access over a Rayleigh fading channel. This result is used to ana
Externí odkaz:
http://arxiv.org/abs/1911.11490
We propose two application-layer coding schemes for delay-constrained point-to-point packet communications with restrictions on the transmitter's maximum duty-cycle. The schemes operate over GF(2) and utilize intermittently available receiver feedbac
Externí odkaz:
http://arxiv.org/abs/1910.11700
We propose a communication scheme with relays to improve the reliability of a Long Range (LoRa) sensor network with duty-cycle limitations. The relays overhear the sensors' transmissions and forward them to a gateway. Simulations show that relaying i
Externí odkaz:
http://arxiv.org/abs/1905.06020
We consider a multipoint-to-point network in which sensors periodically send measurements to a gateway. The system uses Long Range (LoRa) communications in a frequency band with duty-cycle limits. Our aim is to enhance the reliability of the measurem
Externí odkaz:
http://arxiv.org/abs/1904.06072
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