Dynamic Channel Allocation And Optimal Detection For Mac ~UPD~
Abstract – Ad hoc networks are multihop wireless networks without fixed infrastructure, whose topology changes frequently and unpredictably.. Dynamic Channel Allocation And Optimal Detection For Machine LearningDynamic Channel Allocation And Optimal Detection For MacA medium-access control (MAC) protocol for spread-spectrum ad hoc networks with dynamic channel allocation (DCA) is presented.
Such a combination of components is used to adapt the nodes ’ access priority to changes on the traffic load while, at the same time, accounting for the multipacket reception (MPR) capability of the receivers.. A theoretical analysis of the system is developed presenting closed expressions of network throughput and packet delay.
The base station grants access to users in a Rayleigh fading environment using measurements at the physical layer and system information at the MAC layer.. In this paper, the load adaptable medium access control for ad hoc networks (LAMAN) protocol is described.. By simulations, the validity of our analysis is shown and the performances of a LAMAN-based system and an Aloha-CDMA-based one are compared.. We consider a reservation-based medium access control (MAC) scheme where users reserve data channels through a slotted-ALOHA procedure.. LAMAN is a novel decentralized multipacket MAC protocol designed following a cross-layer approach.
Basically, this protocol is a hybrid CDMA-TDMA-based protocol that aims at throughput maximization in multipacket communication environments by efficiently combining contention and conflict-free protocol components.. This design can serve as a benchmark in evaluating the performance of other designs based on conventional physical layer detectors such as Maximum A posteriori Probability, Maximum Likelihood and Uniformly Most Powerful detectors.. DCA can support large systems with smaller spreading gains Sensor network due to dynamic channel allocation thereby.. Combining the best of TDMA and CSMA This system can be used in both multi-channel and single channel.. Dynamic Channel Allocation And Optimal Detection For Machine LearningResults show that utilizing system information in addition to the physical layer measurements indeed leads to a gain in performance.. This paper has two contributions pertaining to simple reserva- tion based medium access.. World cup 2006 icons for mac We discuss the issue of further improving the performance in fading by means of multiple measurements and also comment upon the delay/channel-utilization trade-off for the optimal MAC design.. First, we provide a Markov chain formulation to analyze the performance (throughput/channel utilization) of multichannel slotted system.. Second, a Neyman-Pearson like MAC design optimized for performance is presented.. Slots are assigned right upon queuing detection The crux of iQueue-MAC is an efficient closed loop control mechanism. 5ebbf469cd