In this paper. we explore the physical-layer security in a wireless network consisting of multiple user pairs in the face of multiple eavesdroppers. which are deployed by an adversary for tapping the confidential transmissions of the user pairs deliberately. We propose a friendly jammer-assisted user-pair selection (FJaUPS) scheme to improve the security-reliability tradeoff (SRT). https://countryscenesaddleryandpetsuppliers.shop/product-category/saddlery-accessories/