XXXVIII Simpósio Brasileiro de Telecomunicações e Processamento de Sinais

Vehicular Ad Hoc Networks (VANETs) are expected to be the next big step towards safer road transport, supporting applications to exchange information between vehicles according to ETSI ITS G5. One of the major benefits is to share data related to the onboard sensors, affording to aware surroundings vehicles about objects that are not in their...

A network with a multidirectional relay is used in a wireless sensor network so that nodes can exchange their information with each other more efficiently. It assumes three distinct transmission strategies previously defined. They differ in the way the nodes transmit, one is in pairs, the other is all together and in the third half transmits...

Ca²⁺-Signaling-based Molecular Communication (MC) implies the propagation of Ca²⁺ ions through cells by diffusion, which is influenced by the presence of concentration regulative structures in the plasma membrane, as the Na⁺/K⁺ pump. The valinomycin is a substance that operates via Na⁺/K⁺ pump to facilitate the transportation of those molecules through...

Synchronization between neurons is associated with the health of the nervous system and various cognitive processes. In this article, the neuronal dynamic is represented by the Rulkov model. The robustness of the phase synchronization in case of neuron losses is preliminarily studied, simulating the disconnection of each inactive neuron. Random,...

Molecular communications have found place in the study and modelling of human body. During gestation, for example, bio-signaling information plays a crucial role. From this perspective, this work proposes to analyze the propagation of information molecules in the cardiovascular system of a pregnant woman, taking into account the advection-diffusion...

In wireless communications systems, the performance analysis of diversity techniques is commonly based on essential metrics such as symbol-error rate and outage probability. Under generalized fading channels, these metrics have an exact analytical formulation that is quite complicated, if not unfeasible, which has motivated the search for simpler...

The LHC particle accelerator has been undergoing an upgrade process, producing the effect known as pile-up in the reading electronics of the detectors. As the algorithm currently used to estimate the amplitude of the signals generated in these collisions is not tolerant to this effect, this work proposes the implementation in hardware of an iterative...

Energy reconstruction in Calorimeters is a process executed in pulses generated in its electrodes to estimate the energy of subatomic particles that go through its material. Non-Gaussian characteristics of the noise in calorimeters operating at high frame rates demonstrate that non-linear estimation methods are more appropriate. Nevertheless, such...

LTE-A networks have been developed to support a diversity of data traffic at high rates, especially to meet the requirements of applications such as video calls. This paper proposes a resource allocation scheme that prioritizes video call traffic in a heterogeneous network environment, with the presence of relay nodes. The results of the simulations...

This work presents a decoding algorithm for up to two burst errors for MDS matrix codes with parameters (m + k, k, m + 1) , for all m ≥ 4 , using superregular matrices, such as Vandermonde matrices. This algorithm is a generalization of the algorithm proposed in [1], where the case m = 4 is presented. An example of decoding three burst errors will also...