Re: [ns] transmit power - does it really control transmission range?

2007-12-19 Thread Md. Atiur Rahman Siddique
Hi Sita, In my opinion you dont define threshold like that. You need to ensure: 1. The receiving node can sense the signal. 2. If multiple signal arrive at the same time the signal to noise ratio is greater its threshold. You need to set three vars or use default vals with care: RXThresh_:

Re: [ns] transmit power - does it really control transmission range?

2007-12-18 Thread Sita S. Krishnakumar
I am using two ray ground propogation. Let me try to understand this: If I have a source node with transmission range of 250m and a destination node 100m away with receiving threshold of 20m, will packets from source be received by destination node? -Sita The transmission range depends on

Re: [ns] transmit power - does it really control transmission range?

2007-12-18 Thread Sita S. Krishnakumar
use the threshold executable that comes with ns-2 in /ns/indep-utils/propogation/ -Sita Hi dear sita how to compute CsThresh_ in scenario? -- Amin Irandoost

[ns] transmit power - does it really control transmission range?

2007-12-17 Thread Sita S. Krishnakumar
Hi, I am working with a sparsely connected network in a 200m by 200m field. The default transmit power of 0.281838 corresponds to a 250m transmission range. I have a node in the center with this Pt_ and when it sends out packets, all the nodes in the network do not seem to receive it. Why?

Re: [ns] transmit power - does it really control transmission range?

2007-12-17 Thread Md. Atiur Rahman Siddique
The transmission range depends on the transmitted power, propagation model and recv thershold. So, yes, I think all the nodes are not connnect with these values. -Atiur --- Sita S. Krishnakumar [EMAIL PROTECTED] wrote: Hi, I am working with a sparsely connected network in a 200m by