Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronic Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Using 802.11a MAC in a FPGA?

Status
Not open for further replies.

it_boy

Full Member level 3
Joined
Jul 18, 2002
Messages
173
Helped
6
Reputation
12
Reaction score
2
Trophy points
1,298
Activity points
1,261
802.11a MAC

Hi,
Has anybody tried a 802.11a MAC in a FPGA?
Can somebody tell me the expected gate complexity for such a core, which Xilinx VirtexII chip may be suffecent??
 

zhan

Junior Member level 1
Joined
Oct 13, 2001
Messages
19
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
66
About 300K include WEP, TKIP, AES inplemented by hardware
 

juripero

Member level 4
Joined
Jul 30, 2002
Messages
79
Helped
4
Reputation
8
Reaction score
1
Trophy points
1,288
Activity points
477
I am surprised implementing so many functions with only 300K.
 

it_boy

Full Member level 3
Joined
Jul 18, 2002
Messages
173
Helped
6
Reputation
12
Reaction score
2
Trophy points
1,298
Activity points
1,261
Thanks for the answer Zhan
Does this estimate also include the gate count of Tx & Rx MAC unit?
Will there be any advantage developing the TX and Rx MAC in hardware? I have seen many cores where these parts are developed in software.

Thanks in advance
 

paviljonac

Junior Member level 1
Joined
Feb 28, 2004
Messages
17
Helped
2
Reputation
4
Reaction score
0
Trophy points
1,281
Activity points
152
btw, i've been developing 802.11a digital PHY for intermediate frequency range (software defined radio). for example, demodulator with smoothed LS channel estimation/equalizing, full featured synchronization acquisition and tracking, and FEC, fits into virtex2 2000.
 

csliu

Newbie level 5
Joined
Mar 14, 2004
Messages
8
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
77
Re: 802.11a MAC

Does it include OFDM FFT?
 

buta

Member level 5
Joined
Apr 16, 2003
Messages
80
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
256
Usually a 802.11a MAC are software base as the spec is being changed (eg. fixing new security holes). If it is hardware base, it is bit hard to upgarde.
What functions do you want to implement in tx/rx MAC?
 

oasis

Junior Member level 1
Joined
Mar 3, 2004
Messages
18
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Activity points
158
802.11a MAC

the partition of software and hardware is various according to different designs. if the software's process speed is fast enough, some functions, such as WEP, could be implemented in software. but the functions that need quick responds to the incoming data should be implemented in hardware. it is a tradeoff between performance and cost.
 

Status
Not open for further replies.
Toggle Sidebar

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top