[PDF] Top 20 Performance of an Uplink OFDMA System Using Subcarrier Allocation

... Since there are too many possible candidates in user sequence O as well as in the integer distance sequence D= ( , it is difficult to find an optimum subcarrier allocation. Therefore, we propose a two-stage ... See full document

... In uplink orthogonal frequency division multiple access (OFDMA) systems, efficient resource allocation can greatly improve system ...distributed subcarrier allocation for ... See full document

... without subcarrier altercation may be used to capacity-emphasized scenario with acceptable reduced ...better performance than the fixed subcarrier doling out scheme and can reduce computational ... See full document

... (blockwise) subcarrier allocation schemes in single-carrier frequency division multiple access (SC-FDMA) uplink systems without channel state information at the transmitter ...access OFDMA ... See full document

... cellular system, uplink power consumption dominates the wireless power budget because of RF power requirements for reliable transmission over long ...low-complexity subcarrier-power allocation ... See full document

... in OFDMA systems can be improved by allocating radio resources ...resource allocation schemes: 1) fixed resource allocation [4]; and 2) Adaptive or dynamic resource allocation ...resource ... See full document

... a subcarrier and power alloca- tion scheme in uplink OFDMA systems, where each user not only has the different power constraint, but also is limited by different rate ...cooperative OFDMA ... See full document

... trade-off performance among fairness, efficiency, and complexity for both correlated and uncorrelated OFDMA ...auction-based subcarrier allocation scheme based on a Blotto game (SABG) [12] ... See full document

... based subcarrier allocation algorithm for downlink of an OFDMA cooperative system with grouped users is proposed in this ...the system is maximized. The proposed LP based ... See full document

... flexible subcarrier allocation ...the subcarrier allocation based on small tile and/or resource block structure whereas Zadoff-Chu sequence algorithm requires only the subband ... See full document

... in uplink OFDMA can be found in ...each subcarrier to the user with the highest share. The performance of the proposed algo- rithm will be evaluated and compared with the benchmark algorithms ... See full document

... OFDM uplink systems is examined by P ao ...more performance compared to the one that's ...a subcarrier that is advised each individual is recognized as, after which the spectral effectiveness ... See full document

... resource allocation in space-time-frequency ...Telecommunications System (UMTS) Long Term Evolution ...resource allocation clearly more than a conventional antenna domain approach in ... See full document

... primary system as well as time synchronization to the first arriving user signal, two algorithms are proposed in this ...frequency allocation block of the primary system. The performance of ... See full document

... In general, the main difficulty that is not overcome (in the aforementioned methods) is the multitude of inter- dependencies on each RB over the network. The trans- mit powers on an RB are dependent on the signal ... See full document

... application performance as well as the network resource utilization, since more than 90% of the internet traffic uses TCP in both wireless and wire-line ...application performance and wireless network ... See full document

... subband subcarrier assignment scheme (SAS) ...for uplink OFDMA with interleaved SAS that exploits the periodic structure of the signals from each user has been reported in [13], where the subspace ... See full document

... of subcarrier requirement goes on increasing till certain class number and then starts reducing again and later becomes zero once its requirement is ...of subcarrier requirement indicates suitable class ... See full document

... improve system performance whereby adjacent cells strategize their transmissions such that interference generated to other cells is ...resource allocation because resource allocation strategy ... See full document

... subintervals of D time slots. The average achieved rate in each sub-interval should be greater than or equal to the average input arrival rate if all the packets are delivered successfully. If the achieved rate in a ... See full document