McMahan, M.L., Evolving Cellular Handset Architectures but a Continuing, Insatiable Desire for DSP MIPS. 2000, Texas Instruments Incorporated.  Home/Search   Document Not in Database   Summary   Related Articles

....computational and storage limitations. In these highly constrained devices, a new set of architectural issues has arisen. Many devices, such as cell phones and pagers, use specialized communication hardware in ASICs that provide ultra low power implementations of necessary protocol processing [1]. This is possible because they target a narrow set of well defined applications. The complex tradeoffs between power consumption, bandwidth, and latency can be explored and evaluated with respect to specific performance goals and the optimal protocol can be implemented in hardware. However, the ....

....communication protocols. Figure 1 illustrates the basic axes of the design space for wireless devices. The vast majority of wireless devices include a dedicated radio controller that handles all protocol processing. 802.11 cards, Bluetooth chipsets [2] the BWRC PicoRadio [3] and cell phones [1] all use this approach. A protocol processor handles the real time requirements of modulating and demodulating the radio channel. It refines the raw data stream coming from the radio into a formatted packet interface. For example, the host channel interface (HCI) of Bluetooth deals with highlevel ....

McMahan, M.L., Evolving Cellular Handset Architectures but a Continuing, Insatiable Desire for DSP MIPS. 2000, Texas Instruments Incorporated.

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