> So, Jim, are you saying that .b will have advantages outdoors that .a & .g don't >have?
No, thats not what I said. Here is what I will say: 1) 802.11g and 802.11a will have advantages indoors compared to 802.11b. At a given data rate, OFDM will perform better than CCK in an environment with a lot of multipath, until the delay spread approaches the guard interval. 2) OFDM's performance (compared to CCK) outdoors will depend a lot on the physical environment. 3) I advise 'caution' if you're considering 'mixed mode' 802.11g deployments (simultaneously supporting 802.11g and 802.11b STAs), especially prior to full IEEE standardization. It is rumored that some chipsets "fall back" to 802.11b for the entire BSS if but a single 802.11b STA associates. (I haven't seen this myself.) 4) Rate adaption algorithms are one of the places that will make a big difference in how any given OFDM chipset performs. 5) OFDM does trade off receiver sensitivity (and complexity) for data rate. (There is no free lunch.) Moore's law will eventually eliminate the complexity issue, when the marginal cost of the extra silicon can't be measured. Jim -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
