Navid Nikaein
b264c0b9ee
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5581 818b1a75-f10b-46b9-bf7c-635c3b92a50f
95 lines
4.2 KiB
C
95 lines
4.2 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@eurecom.fr
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Address : Eurecom, Compus SophiaTech 450, route des chappes, 06451 Biot, France.
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*******************************************************************************/
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/**
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* \file rwalk.h
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* \brief Functions used for the RWALK Model
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* \date 22 May 2011
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*
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*/
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#ifndef RWALK_H_
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#define RWALK_H_
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#include "omg.h"
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/**
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* \fn void start_rwalk_generator(omg_global_param omg_param_list)
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* \brief Start the RWALK model by setting the initial positions of each node then letting it sleep for a random duration. This new job is then added to the Job_Vector
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* \param omg_param_list a structure that contains the main parameters needed to establish the random positions distribution
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*/
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int start_rwalk_generator(omg_global_param omg_param_list) ;
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/**
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* \fn void place_rwalk_node(NodePtr node)
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* \brief Called by the function start_rwalk_generator(), it generates a random position ((X,Y) coordinates) for a node and add it to the corresponding Node_Vector_Rwp
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* \param node a pointer of type NodePtr that represents the node to which the random position is assigned
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*/
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void place_rwalk_node(node_struct* node) ;
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/**
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* \fn Pair sleep_rwalk_node(NodePtr node, double cur_time)
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* \brief Called by the function start_rwalk_generator(omg_global_param omg_param_list), it allows the node to sleep for a random duration starting from the current time
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* \param node a pointer of type NodePtr that represents the node to which the random sleep duration is assigned
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* \param cur_time a variable of type double that represents the current time
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* \return A Pair structure containing the node and the time when it is reaching the destination
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*/
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void sleep_rwalk_node(pair_struct* pair, double cur_time) ;
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/**
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* \fn Pair move_rwalk_node(NodePtr node, double cur_time)
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* \brief Called by the function update_rwalk_nodes(double cur_time), it computes the next destination of a node ((X,Y) coordinates and the arrival time at the destination)
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* \param node a variable of type NodePtr that represents the node that has to move
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* \param cur_time a variable of type double that represents the current time
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* \return A Pair structure containing the node structure and the arrival time at the destination
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*/
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void move_rwalk_node(pair_struct* pair, double cur_time) ;
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/**
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* \fn void update_rwalk_nodes(double cur_time)
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* \brief Update the positions of the nodes. After comparing the current time to the first job_time, it is decided wether to start
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* \ a new job or to keep the current job
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* \param cur_time a variable of type double that represents the current time
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*/
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void update_rwalk_nodes(double cur_time) ; // need to implement an out-of-area check as well as a rebound function to stay in the area
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/**
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* \fn void get_rwalk_positions_updated(double cur_time)
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* \brief Compute the positions of the nodes at a given time in case they are moving (intermediate positions). Otherwise, generate a message saying that
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* the nodes are still sleeping
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* \param cur_time a variable of type double that represents the current time
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*/
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void get_rwalk_positions_updated(double cur_time) ;
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/*for perfect simulation of random walk*/
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double residualtime(omg_global_param omg_param);
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#endif /* RWALK_H_ */
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