WiseTOP: a quality of serviceaware low power acquisition and wireless communication platform for prosthesis control This paper describes the WiseTOP realtime communication platform embedded into an osseointegrated prosthesis used for the recovery of hand function after amputation and presents initial results of performance evaluation. The acquisition of sensor data benefits from a high performance, low power analogtodigital front end and the communication system is optimized for both low power operations and highthroughput, for meeting the autonomy and traffic requirements of standalone prostheses, such as the hand developed by Prensilia SRL. The WiseTOP platform includes a 55nm lowpower SystemonChip, embedding a 20 differential channel EMG frontend, 12bit ADC and 32bit processing unit optimized for the prosthetic application, and an ultralow power and compact 2.4GHz transceiver. It includes the WiseTOP wireless protocol, which is designed and optimized for lowlatency, highthroughput data transfer and lowenergy communication between the sensors and a central unit from Integrum AB. To improve the autonomy and coexistence of many such systems in the vicinity, the WiseTOP platform adapts the quality of service to the communication requirements at any time during the operations of the prosthesis. Wireless communications offer the simplification of the connection (absence of wire and connector), improved reliability (cable wear and breakage are eliminated), flexibility (seamless reconfiguration of the communication links) and implantation of the sensory system in the most convenient location. The patient will hence benefit from a cheaper, smaller and more reliable prosthesis.

FPGABased Tactile Sensory Feedback System with Optical Fiber Data Communication Link for Prosthetic Applications Tactile sensory feedback systems could enable the prosthetic system to convey touch information to the amputee. Employing sensor arrays with a high number of sensors gives highresolution tactile information but imposes challenges on the embedded electronics in processing and transmitting a large number of tactile data to the prosthetic user. This work proposes the design of a FPGAbased approach for tactile sensory feedback systems that employs an optical fiber data communication link for prosthetic applications. The system consists of an interface electronics to manage the data acquisition from the tactile sensor array, a digital coding unit, an optical fiberbased communication link, a digital decoding unit and a further interface electronics to communicate with external apparatus. The data acquisition process followed by a UWBbased optical modulation allows for the transmission of pulsed coded tactile data through the optical fiber to a final user by means of, for example, an electrotactile stimulator combined with flexible electrodes. The transmitter and receiver systems have been implemented on two different FPGA boards with the optical communication channel connecting the two boards. The designed system functionality was demonstrated by employing an experimental setup where sequence of sensor data, emulating an array of 32 sensors sampled at 2kHz, were employed to verify the correctness of the data transmission at 100Mbps data rate through the optical fiber. Experimental results validated the functionality of the proposed design and demonstrated that the optical communication link highly improves the robustness to electromagnetic disturbances, the transmission data rate as well as the power consumption.