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This work presents a power-efficient route discovery protocol (PERDP) to reduce signaling overhead of the power-efficient routing (PER) mechanism for Opportunity Driven Multiple Access (ODMA) networks. An analytical method was proposed to derive the control parameters to achieve a given connectivity probability. Simulation results demonstrate the accuracy of the analysis and the superiority of the proposed PERDP. It is found that the signaling overhead of the proposed PERDP is 12.03% and 24.85% lower than that of dynamic source routing (DSR) and PER mechanism, respectively, under 90% connectivity probability in a high UE-density environment. [ABSTRACT FROM AUTHOR]

In this paper, we propose an enhanced traffic marker (ETM) to amend the inappropriate marking in DiffServ networks. The ETM is based on the Two-Rate-Three-Color-Marker (TRTCM) scheme and introduces the feature of aggressive promotion and fair share marking. Simulation results show that the ETM fairly allocates bandwidth among micro-flows and achieves a higher throughput than TRTCM does. [ABSTRACT FROM AUTHOR]