ANALYTICAL COMPARISON OF BASE STATION REACH FOR VARIOUS MULTICARRIER SIGNAL SCHEMES

Subject of Research. The paper considers the problem of choice and comparison of multicarrier schemes in cellular networks. The schemes are compared with Orthogonal Frequency Division Multiplexing which is a current choice for the 5th generation networks. Reviewed schemes are evaluated by their effect for the Internet of Things scenario. We consider the effect of applying wireless sensor networks as sensors along highways. Also alternative multicarrier schemes are evaluated based on possible improvements in conventional cellular networks. Method. The schemes proposed for implementation were compared by criteria significant for the IoT. The possible improvement of base station reach was evaluated with respect to parameters defined in 5G and New Radio specifications, developed by The Third Generation Partnership Project Consortium. Main Results. Analytical method for improvement evaluation of base station reach while implementing of alternative multicarrier schemes is formulated. Base station reach increase is the result of higher power efficiency occurring at reduction of radiated power out of specified bandwidth (“side lobes”) and the peak to average power ratio. The performed modeling has shown that base station reach increase in case of “Universal Filtered MultiCarrier” scheme implementation in 5G networks is approximately 12%. Practical Relevance. Obtained results can be of practical use in decision-making regarding the implementation relevance of alternative multicarrier schemes in cellular networks after 5G. According to the higher reach it is possible to evaluate the increase in number of subscribers when their area density is fixed and, consequently, the lowering in capital expenditures on network deployment if the number of base stations is decreased.