A reconfigurable and hardware proficient hybrid VLSI architecture is greatly necessitated for spectrum sensing that is a combination of energy detection and time domain cyclostationary techniques for cognitive radio applications. One among the key features of Cognitive Radio is Spectrum Sensing which is exploited for allocating unused frequency band efficiently. Various research works are being carried out to investigate the different spectrum sensing methods and analyze the advantages, disadvantage and applications. Here, the novel idea is to design a hybrid architecture by combining energy detection and time domain cyclostationary techniques by exploiting the advantages of those techniques and can be selected based on the applications. Also an energy efficient Low Latency Column Bit Compressed (LLCBC) MAC is greatly utilized in this hybrid architecture to design an Application Specific Integrated Circuit more efficiently. The Proposed method thus helps in achieving significant VLSI parameters such as area, power and delay when compared with the existing time domain cyclostationary technique. The proposed Cyclostationary-based Spectrum Sensing Architecture using LLCBC MAC also yields 4.3% Area reduction, 19.5% Power reduction and with no change in Delay when compared with existing Cyclostationary-based Spectrum Sensing Architecture. Also, in Hybrid Spectrum Sensing Architecture embedding LLCBC MAC unit, a significant reduction in Area and Power corresponding to 57%, and 32% are achieved respectively, besides Hybrid Architecture is 15.28% faster than the individual architectures.

频谱感测非常需要可重构且精通硬件的混合VLSI架构，该架构是能量检测和时域循环平稳技术在认知无线电应用中的结合。认知无线电的主要特征之一是频谱感测，该频谱感测被用于有效地分配未使用的频带。正在进行各种研究工作，以研究不同的频谱感测方法，并分析其优缺点和应用。在这里，新颖的想法是通过利用能量检测和时域循环平稳技术的组合来设计混合架构，这些技术利用了这些技术的优势，并且可以根据应用进行选择。在这种混合架构中，还大大利用了高能效的低延迟列位压缩（LLCBC）MAC，可以更高效地设计专用集成电路。因此，与现有的时域循环平稳技术相比，所提出的方法有助于实现重要的VLSI参数，例如面积，功率和延迟。与现有的基于循环平稳的频谱传感体系结构相比，使用LLCBC MAC的拟议基于循环平稳的频谱传感体系结构还可以减少4.3％的面积，降低19.5％的功耗，并且在延迟方面没有变化。此外，在嵌入LLCBC MAC单元的混合频谱传感架构中，面积和功耗分别显着降低，分别降低了57％和32％，此外，混合架构比单个架构要快15.28％。