Accurate and Efficient Evaluation of Bit Error Rate for Dynamic Directional Modulation for Standard Modulation Schemes

Directional modulation (DM) has been proposed as a technique to enhance physical layer security of wireless transmissions. In DM, the improvement of security is achieved by increasing the transmitted power in such a way that the bit error rate (BER) is degraded in the observation angles out of the desired secure direction. The performance of DM in terms of BER is typically evaluated by transmitting a stream of symbols for every observation angle, but this approach can be time consuming. In this communication, we propose an approach to evaluate, accurately and efficiently, the BER of dynamic DM (DDM) for standard modulation schemes. Several DDM configurations will be tested to illustrate the benefits and limitations of the evaluation method. The proposed approach is also used to present a non-iterative DDM synthesis with restrictions in the BER response.

Li-Fi Synchronicity towards 5 G: concepts, challenges and opportunities

It is quite frustrating when the moderate speed of system prompts restricts availability and long handling hours while utilizing remote web either at home system or coffeehouse or airplane terminal or going after data transfer capacity at a meeting. As more clients are tapped in with their gadgets, the stopped up wireless transmissions make it hard to hook on a dependable sign. Radio wave is by all accounts completely abused and other range should also be investigated. For this reason, fibre optics have been utilized to send information through LED light. D-Light can deliver information rates speedier than 10 super bits for each second, which is far quicker than normal broadband association.