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Old 05-22-2015, 07:11 AM   #1
whatamazing
LQ Newbie
 
Registered: Mar 2015
Posts: 13

Rep: Reputation: Disabled
after install gpsr, test the perimeter mode , it has throw "Wrong the other node"


hello there!
the common communication between nodes is fine, but when i want to test the perimeter mode it has throw the error "Wrong the other node", it seems that it couldn't find its next hop node.
i trace the code as show below
Code:
int
GPSRNeighbors::intersect(nsaddr_t theother, double sx, double sy,
			 double dx, double dy){
  //line 1 (x1,y1)--(x2,y2) is the segment
  //line 2 (x3,y3)--(x4,y4) is the xD 
  struct gpsr_neighbor *other = getnb(theother);

  if(other==NULL){
    printf("Wrong the other node\n");
    exit(1);
  }


  ****************

struct gpsr_neighbor*
GPSRNeighbors::getnb(nsaddr_t nid){
  struct gpsr_neighbor *temp = head_;
  while(temp){
    if(temp->id_ == nid){
      if((GPSR_CURRENT - temp->ts_) < DEFAULT_GPSR_TIMEOUT)
	return temp;
      else {
	delnb(temp); //if this entry expire, delete it and return NULL
	return NULL;
      }
      return temp;
    }
    temp = temp->next_;
  }
  return NULL;
}
the simulation scene was shown in the attachment.
when i make node 0 send packet to node 1, the error will occur.
would somebody know how to solve it?
thank you for your time!
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Last edited by whatamazing; 05-22-2015 at 07:15 AM.
 
Old 05-23-2015, 08:55 PM   #2
whatamazing
LQ Newbie
 
Registered: Mar 2015
Posts: 13

Original Poster
Rep: Reputation: Disabled
did anybody face that before?
 
Old 11-20-2015, 05:20 AM   #3
sims2801
Member
 
Registered: Aug 2012
Posts: 50

Rep: Reputation: Disabled
Hello everyone

I am using GPSR ke-liu patch on ns2.32 .
For some paramter values (parameters means transmission range , simulation time , no of nodes) its runnning prefectly fine but for other's it is giving an error "wrong the other node".
Example 1: When i am running same code with 150 transmission range, simulation time =1000 and nodes = 150 , it works prefectly fine . But when i run with same simulation time, same number of nodes but transmission range as 200 or 250 , it gives the error "wrong the other node".

Example 2: simulation time = 1000 , nodes = 250, trnamission range = 100 - works prefectly fine
but with simulation time = 1000 , nodes = 250, trnamission range = 50 or 150 or 200 or 250 -- gives error.

Does anyone ever faced this kind of problem . how can i overcome this problem.
Kindly help.

Thanks
 
  


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Tags
c++, gpsr-keliu, ns2, ns2 ns-allinone


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