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Essay / Wireless Communication Networks
This article introduces us to the latest development in wireless communication networks in which a hybrid access point with constant power controls wireless information transmissions to a set of various users who do not have other sources of energy. .Say no to plagiarism. Get a tailor-made essay on “Why violent video games should not be banned”? Get an original essay A “harvest then transmit” protocol is used when all users first harvest the wireless energy broadcast from the point of hybrid access point in the downlink, and then send their own information to the hybrid access point in the uplink by time division multiple access. We have seen that maximizing the total throughput of all users by collectively optimizing the allocation of time slots for downlink wireless power transfer versus user uplink information transmissions given the total time constraint based on the user's downlink and uplink channels and their average harvested energy values. Using convex optimization techniques, we obtain the closed-form expressions for the optimal time allocations to maximize the total throughput. The solution given in this article talks about the "near-far doubly" effect due to which the downlink and uplink dependent signal attenuation is far away. , where a user far from the hybrid access point, who receives less wireless power than a user closer in the downlink, must transmit with more power in the uplink for reliable transmission of information. Keep in mind: this is just a sample. Get a custom paper now from our expert writers.Get a custom essayAs a result, the maximum total throughput is achieved by allocating much more time to nearby users than to remote users, resulting in an unfair distribution of rates among different users. To overcome this problem, we further propose a new performance metric called common throughput with the additional constraint that all users should be assigned an equal rate regardless of their distance from the hybrid hotspot. We present an efficient algorithm to solve the common throughput maximization problem. Emulation results demonstrate the effectiveness of the common-rate approach for solving the novel near-far doubling problem in wireless communication networks.