[PDF] Top 20 Software radio architectures - part 2

... It is reasonable to say that this SPLL program has simplified a much more complex task. For example the NCO is not as accurate as it could be. The NCO determines phase/frequency changes by counting samples in one period ... See full document

... antenna architectures show a higher sensitivity than the stand-alone single antenna CR ...Table 2, increases for both architectures for the three considered classes of ... See full document

... The random graph generator which is used for computer simulations produces irregular, connected, directed, acyclic graphs with a fixed number of nodes M = 40. The gener- ation process starts out from a chain of two nodes ... See full document

... Figure 3 shows how it works: coming from the antenna, the RF signal is first bandpass filtered and then amplified. Fol- lowing a two-way signal splitter, the next step is an analog mixing with the locally generated RF ... See full document

... of software projects and how one might think about the design problem in that ...substantial software project actually using these techniques to help in their decision making ...in software projects ... See full document

... For encryption baker mapping is used. The authentication message chosen here is a 1 bit 8 × 8 message and which can be extended as the power of 2, such as 8, 16, 32, 64 etc. The encryption is done by using a key. ... See full document

... This last constraint a φ 3 introduces the difference between functional and (minimal) interaction constraints. Method arise accepts calls where the caller is not the current seat holder and throws an exception, while sit ... See full document

... Fig. 2, can transmit at up to 256 kbit/s in differential QPSK mode between the two baseband DSPs, whereby the limiting factor is the serial connection between the DRP and the baseband receiver ... See full document

... other 2 nd order products without significantly degrading the sensitivity ...receiver architectures for multi-band applications can be found in [42], [43], [44], [45], [46] and ... See full document

... Potentially unrealizable designs The third problem of existing ADLs is that when they do support user-defined, complex connectors, they do so in a way that can lead to unre- alizable designs. All ADLs in this category ... See full document

... characterizing architectures. It should explain the ba- sic concepts of the software architectures that are: components, connectors and ...of architectures and their evolution ...on ... See full document

... the software in different layers has a lot of advantages to facilitate the integration ...Table 2 summarizes the different challenges of data integration and the most suitable architecture can overcome ... See full document

... Architectural descriptions of systems are extremely valuable for communicating high-level system design as- pects and the different solutions that have been evaluated for meeting system-wide, non-functional properties. ... See full document

... Acoustic communications are the typical physical layer technology in underwater systems. Wire communications are difficult to deploy and are unsuitable for moving. In fact, radio waves suffer from such high ... See full document

... There has been a wide variety of approaches for evaluating and benchmarking the performance of software designs; however, they all share the same aim which is predicting problems in design prior to implementation. ... See full document

... RPC 2 pattern, Router (R) can be struc- tured following publish-subscribe, and Distributor (D) can be assembled as a service ...as part of a publish-subscribe strategy when Monitor (M) subscribes to ... See full document

... OAI software for instance, a specific directory is defined for contain- ing the necessary scripts and Makefiles to generate all the LTE configuration data structures based on the ... See full document

... developing software is huge [1]. While developing software different architectures are used for development and security is one of the main concerns in the software components ...the ... See full document

... A key issue in the design of the Ambient Web Monitor is that it should afford similar physical manipulations as other artefacts in a typical office environment. Chairs for example can easily be moved from one room to the ... See full document

... PC-based software router, networking functions related to the physical and the data-link layer are performed by NIC hardware, whereas the IP layer is implemented in software in the Linux ...network ... See full document