Class (II) warfare

Class Warfare: Classes vs. Prototypes

An examination of recent work on prototype-based architectures for object-oriented programming raises a number of interesting questions, the most obvious being: Are prototype-based object-oriented architectures superior to class-based architectures? Another way of addressing the same issues might be to ask: Are class-based architectures over-centralized, and excessively rigid? This work also ra...

Class Warfare: Thersites in the Iliad

Class I Class II - A Class II

Addressed is the uplink access control problems for cellular CDMA systems that service heterogeneous traac with various types of quality-of-service (QoS) and use Multi-Code CDMA (MC-CDMA) to support variable bit rates. Considering its distinct QoS requirements, class-I real-time traac (e.g., voice and video) is diierentiated from class-II non-real-time traac (e.g., data). Connection-oriented tr...

CDMA Codeword optimization: Interference avoidance and convergence via class warfare

Interference Avoidance, Sum Capacity and Convergence Via Class Warfare

Interference avoidance has been shown to reduce total average interference (TSC) for given ensembles of user signature waveforms (codewords) in a synchronous CDMA system. In all experiments we have conducted, sequential application of interference avoidance produces an optimal codeword set when starting from randomly chosen initial codewords. Here we provide the first formal proof of convergenc...