[ns] Error model(Urgent) parameters

Dear NS users, Specifying the rate_ gives me the indication that the error will be constant? True? Then the random operation by ranvar, how does it effect the error model!!! The ns manual said: ranvar to specify the random variable for generating errors? thus what is the role of rate_ I need

[ns] TCP bursts

Hi, Im doing a project in ns2 where i need to convert The smooth TCP stream into bursts.. Im suppose to do modifications to the window advertised by the receiver, but because there is no dynamic window advertisement in ns,im changing the sender to send packets in bursts.. im trying to modify

Re: [ns] wireless node connection with a physical link

Dear Ashraf, I tried to make the script as simple as possible. When I run the tcl script I fount the following output. num_nodes is set 2 INITIALIZE THE LIST xListHead routes not yet computed routes not yet computed channel.cc:sendUp - Calc highestAntennaZ_ and distCST_ highestAntennaZ_ = 1.5,

[ns] Transfer of file between nodes

Hi everyone! A quick question related to ns-2. Do you know if there is the capability in ns-2 to transmit a real file between two nodes. For example to have a specific file in one directory of the hard drive and ask the simulator to actually read and tranfer this specific file (segment it, create

[ns] problem with .tr files

hi, my prob is, every time i run eg: xgraph aodv.tr it has many error in each line and i cannot have the output graph. the error says like: Error in file `aodv1.tr' at line 64368: Unknown line type Error in file `aodv1.tr' at line 64369: Unknown line type Error in file `aodv1.tr' at line

[ns] backoff decrement and transmission in 802.11e tkn code

According to section 9.9.1.3 in the IEEE 802.11e standard, one and only one of the following actions is allowed at slot boundaries: - decrement of backoff timer, or - initiate transmission, or - backoff procedure due to internal collision, or - do nothing. So, 1. Backoff counter is

Re: [ns] backoff decrement and transmission in 802.11e tkn code

On Mar 15, 2006, at 1:40 PM, Jongman Heo wrote: According to section 9.9.1.3 in the IEEE 802.11e standard, one and only one of the following actions is allowed at slot boundaries: - decrement of backoff timer, or - initiate transmission, or - backoff procedure due to internal

Re: [ns] backoff decrement and transmission in 802.11e tkn code

I have no knowledge about the TKN implementation. However, I don´t agree with the interpretation of item 2. Because, when the backoff counter reach 0, the station can transmit immediately, i.e., in the next slot time. The station doesn´t wait for another AIFS interval. According to section

Re: [ns] urgent help: about heterogeneous nodes in ns2

You can call node-config twice, each with different parameters for the two kinds of nodes you want to create. -Sita hi, every body: I want to use two kinds of nodes with different transmission power and coverage radius in a single scenario, how can I config these nodes in a

[ns] Does anyone has tcl scripts to test IEEE 802.11 protocol with multihop topology?

Dear friends: I want some tcl scripts to test IEEE 802.11 protocol with multihop topology. Please help me. Best regards! your sincere David

[ns] QOS of WLAN

  Dear NS users, Anyone out there with the simulation codes for enhancement of QOS of WLAN for voice multimedia communication in NS2. please send an immediate responce to me. I need them for an academic work. Thank you.

[ns] IEEE 802.15.4 GTS implementation

Hi all, I am working with the IEEE 802.15.4 model included in ns-2.29 (in directory wpan). That implementation misses the parts related to GTS (Guaranteed Time Slot) access. So basically it implements only the CAP (Contention Access Period) and not the CFP (Contention-Free Period). I

[ns] what is the relation b/w throughput and delay

hi what is the relation between the throughput and delay. r they inversly proportional

[ns] how to calculate PDR and throughput

hi how to calculate the throughput and packet delivery ratio advance tanks regards raja

[ns] How to install ns2.1b8a?

Hello, I'm having ns2.1b8a software. I have to run my code in ns2.1b8a. Is it possible to install ns2.1b8a in Linux 9.0 version. When I tried installing it, I got the following error: no rule to make target 'VERSION' needed by 'gen/version.c'. Stop ns make failed.

Re: [ns] backoff decrement and transmission in 802.11e tkn code

No. The operation of backoff decrement in 802.11e EDCA is significantly different from 802.11 DCF. In DCF, transmission occurs whenever the backoff counters reach zero. In EDCA, however, transmission occurs on the first slot boundary after the backoff counter has reached zero. STAs wait for a