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In space mission there are different scenarios where autonomous radio systems are very useful. In this paper we consider one of such scenarios, related to the communication infrastructure for the planet exploration (where different rovers communicate with an orbiter). One of the most critical functions to implement in autonomous radio is the reconstruction of the electromagnetic scenario, detecting...
This paper proposes a novel adaptive Orthogonal Frequency Division Multiplexing (OFDM) transmission scheme in which adaptive coding and modulation (ACM) and the required signaling overhead is jointly optimized to maximize the effective data rate. In the considered time-division duplex (TDD) system, the transmitter signals only the most important ACM parameters to the receiver which classifies the...
Calcium signaling is one of the most widely studied means of providing communication for molecular communications in nanonetworks. In this paper, we investigate error control approaches for calcium signaling based molecular communications. Taking an information theoretic approach we show, using a stochastic simulation model, how error conditions such as signal fading, multipath propagation and spatial...
The recent digital transition of TV broadcasting has created new opportunities for wireless usage for voice, video and data services in these newly released bands (known as TV white spaces). Some possible wireless technologies that can be deployed in this new spectrum are LTE and Wi-Fi. In this paper, we conduct an in-depth analysis of the physical layer performance of LTE and Wi-Fi in the presence...
In this article, we develop a unified framework for characterizing the area spectral efficiency and the energy efficiency (EE) of multi-antenna multi-hop cognitive underlay networks (CRNs). We highlight the available degrees-of-freedom which can be exploited to maximize the EE of the network. In particular, we demonstrate that considering the primary user's quality of service (QoS) requirements, joint...
We present an in-depth performance analysis of the gains of physical layer (PHY) abstraction when compared to a full implementation of the physical layer. The abstraction model uses either effective signal to noise plus interference (SINR) mapping or mutual information effective SINR mapping and covers different transmission modes as well as support for hybrid automatic repeat request. Using the OpenAirInterface...
Vertical line arrays (VLAs) deployed below the critical depth in deep ocean environments have been shown to have lower levels of distant shipping noise [1]. In addition, acoustic energy from nearby targets travels via the Reliable Acoustic Path (RAP), and thus has an enhanced signal level. The combination of these two factors produces a favorable detection scenario. However, nearby surface ship interference...
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