Message Fractionation and Physical Layer Channel Assignment for Multiuser Detection-Enabled Wireless Communication among Adaptive Interference

Although the demand for wireless communications has grown substantially, the number of electromagnetic spectrum allocations that can be used for wireless communications is limited. This "spectrum scarcity" problem in telecommunications necessitates efficient spectrum management. The primary method employed currently for spectrum management is to allocate exclusive channels or frequency bands to individual users. However, studies have shown that many of these licensed spectrums are significantly underutilized, creating wastage of precious spectrum resources and a requirement for a more effective method of handling interference while providing efficient spectrum usage.

Technology Description

Cognitive coexistence radio is an advanced technology that leverages the principle of message fractionation and physical layer channel assignment. It aims to establish coexistence communications amidst potential interferers. The technology breaks a transmit signal into multiple streams, directing them for transmission via occupied channels by proper power allocation and modulation scheme. It employs a near-optimal selfish power-allocation method rooted in the "water-filling" solution, a popular method to maximize signal-to-noise ratio in telecommunications. What sets this technology apart from others is its ability to function amidst interference. It could utilize occupied channels by dispersing the transmit signal into multiple streams based on the detailed power-allocation and -modulation scheme. This approach ensures the most efficient use of available resources, especially in crowded spectrum environments. Furthermore, the use of the water-filling solution promotes an increased capability in power management to maintain signal integrity and noise suppression.