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uncertain environments. While permanent centralized servers are not expected to be available, distributed The paper proposes a novel improvised architecture for systems suffer from high complexity and overheads. NeVo providing fundamental services through exploitation of exploits the hierarchical and distributed structure to node heterogeneity so that relatively stable and capable conquer the aforementioned problems. devices cooperate and assist resource-poor devices. The Implementation of service discovery, trust notation and novel hierarchical architecture called NeVo (Network of operators and trust evolution processes developed in [1] Volunteers) uses a small subset of the volunteer nodes to are revisited, utilizing the NeVo architecture. In addition, perform basic services such as QoS provisioning, service in this paper, we present results of simulation studies to discovery, mobility management, and trust management in validate the superior performance of the proposed trust pervasive environments. Service discovery protocols and management scheme in NeVo through comparisons with trust management schemes that utilize the NeVo distributed approaches. The paper is organized as follows. architecture are presented. The utility of NeVo as a Section 2 outlines the NeVo architecture and protocols. flexible and adaptable architecture for creating and We also summarize service discovery mechanism and trust provisioning fundamental services is validated through management scheme. Simulation studies on the trust extensive simulation studies. management scheme are presented to compare with distributed approaches in Section 3. In Section 4, we